Home / 629,931.80-944,897.70-315,003.80

Finding the Fourth Proportional to 629,931.80, 944,897.70 and 315,003.80

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Solution

The fourth proportional to 629,931.80, 944,897.70 and 315,003.80 is: 472,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,931.80 : 944,897.70 = 315,003.80 : x
  2. Step 2: Convert to fraction form
    629,931.80/944,897.70 = 315,003.80/x
  3. Step 3: Cross multiply
    629,931.80x = 944,897.70 × 315,003.80
  4. Step 4: Simplify right side
    629,931.80x = 297,646,366,111.26
  5. Step 5: Solve for x
    x = 297,646,366,111.26/629,931.80
  6. Step 6: Final answer
    x = 472,505.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.