Home / 907,497.72-1,252,420.07-520,349.17

Finding the Fourth Proportional to 907,497.72, 1,252,420.07 and 520,349.17

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Solution

The fourth proportional to 907,497.72, 1,252,420.07 and 520,349.17 is: 718,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,497.72 : 1,252,420.07 = 520,349.17 : x
  2. Step 2: Convert to fraction form
    907,497.72/1,252,420.07 = 520,349.17/x
  3. Step 3: Cross multiply
    907,497.72x = 1,252,420.07 × 520,349.17
  4. Step 4: Simplify right side
    907,497.72x = 651,695,737,653.74
  5. Step 5: Solve for x
    x = 651,695,737,653.74/907,497.72
  6. Step 6: Final answer
    x = 718,123.83

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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.