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Finding the Fourth Proportional to 637,553.42, 879,792.14 and 351,019.97

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Solution

The fourth proportional to 637,553.42, 879,792.14 and 351,019.97 is: 484,390.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,553.42 : 879,792.14 = 351,019.97 : x
  2. Step 2: Convert to fraction form
    637,553.42/879,792.14 = 351,019.97/x
  3. Step 3: Cross multiply
    637,553.42x = 879,792.14 × 351,019.97
  4. Step 4: Simplify right side
    637,553.42x = 308,824,613,666.07
  5. Step 5: Solve for x
    x = 308,824,613,666.07/637,553.42
  6. Step 6: Final answer
    x = 484,390.17

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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.