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Finding the Fourth Proportional to 658,527, 908,767.53 and 356,721

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Solution

The fourth proportional to 658,527, 908,767.53 and 356,721 is: 492,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,527 : 908,767.53 = 356,721 : x
  2. Step 2: Convert to fraction form
    658,527/908,767.53 = 356,721/x
  3. Step 3: Cross multiply
    658,527x = 908,767.53 × 356,721
  4. Step 4: Simplify right side
    658,527x = 324,176,462,069.13
  5. Step 5: Solve for x
    x = 324,176,462,069.13/658,527
  6. Step 6: Final answer
    x = 492,275.13

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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.