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Finding the Fourth Proportional to 637,545.49, 956,317.12 and 437,258.72

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Solution

The fourth proportional to 637,545.49, 956,317.12 and 437,258.72 is: 655,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,545.49 : 956,317.12 = 437,258.72 : x
  2. Step 2: Convert to fraction form
    637,545.49/956,317.12 = 437,258.72/x
  3. Step 3: Cross multiply
    637,545.49x = 956,317.12 × 437,258.72
  4. Step 4: Simplify right side
    637,545.49x = 418,158,001,102.93
  5. Step 5: Solve for x
    x = 418,158,001,102.93/637,545.49
  6. Step 6: Final answer
    x = 655,887.32

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Double scale
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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.