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Finding the Fourth Proportional to 804,587.90, 1,207,573.05 and 355,999.10

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Solution

The fourth proportional to 804,587.90, 1,207,573.05 and 355,999.10 is: 534,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,587.90 : 1,207,573.05 = 355,999.10 : x
  2. Step 2: Convert to fraction form
    804,587.90/1,207,573.05 = 355,999.10/x
  3. Step 3: Cross multiply
    804,587.90x = 1,207,573.05 × 355,999.10
  4. Step 4: Simplify right side
    804,587.90x = 429,894,918,984.26
  5. Step 5: Solve for x
    x = 429,894,918,984.26/804,587.90
  6. Step 6: Final answer
    x = 534,304.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.