Home / 757,456.64-1,044,344.68-485,076.72

Finding the Fourth Proportional to 757,456.64, 1,044,344.68 and 485,076.72

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Solution

The fourth proportional to 757,456.64, 1,044,344.68 and 485,076.72 is: 668,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,456.64 : 1,044,344.68 = 485,076.72 : x
  2. Step 2: Convert to fraction form
    757,456.64/1,044,344.68 = 485,076.72/x
  3. Step 3: Cross multiply
    757,456.64x = 1,044,344.68 × 485,076.72
  4. Step 4: Simplify right side
    757,456.64x = 506,587,294,627.45
  5. Step 5: Solve for x
    x = 506,587,294,627.45/757,456.64
  6. Step 6: Final answer
    x = 668,800.39

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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.