Home / 755,311.77-1,042,343.54-411,157.60

Finding the Fourth Proportional to 755,311.77, 1,042,343.54 and 411,157.60

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Solution

The fourth proportional to 755,311.77, 1,042,343.54 and 411,157.60 is: 567,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,311.77 : 1,042,343.54 = 411,157.60 : x
  2. Step 2: Convert to fraction form
    755,311.77/1,042,343.54 = 411,157.60/x
  3. Step 3: Cross multiply
    755,311.77x = 1,042,343.54 × 411,157.60
  4. Step 4: Simplify right side
    755,311.77x = 428,567,461,014.40
  5. Step 5: Solve for x
    x = 428,567,461,014.40/755,311.77
  6. Step 6: Final answer
    x = 567,404.72

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Double scale
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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.