Home / 755,638.39-1,042,766.04-411,478.55

Finding the Fourth Proportional to 755,638.39, 1,042,766.04 and 411,478.55

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Solution

The fourth proportional to 755,638.39, 1,042,766.04 and 411,478.55 is: 567,832.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,638.39 : 1,042,766.04 = 411,478.55 : x
  2. Step 2: Convert to fraction form
    755,638.39/1,042,766.04 = 411,478.55/x
  3. Step 3: Cross multiply
    755,638.39x = 1,042,766.04 × 411,478.55
  4. Step 4: Simplify right side
    755,638.39x = 429,075,858,368.03
  5. Step 5: Solve for x
    x = 429,075,858,368.03/755,638.39
  6. Step 6: Final answer
    x = 567,832.27

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.