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Finding the Fourth Proportional to 564,505.62, 779,664.28 and 371,774.86

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Solution

The fourth proportional to 564,505.62, 779,664.28 and 371,774.86 is: 513,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,505.62 : 779,664.28 = 371,774.86 : x
  2. Step 2: Convert to fraction form
    564,505.62/779,664.28 = 371,774.86/x
  3. Step 3: Cross multiply
    564,505.62x = 779,664.28 × 371,774.86
  4. Step 4: Simplify right side
    564,505.62x = 289,859,578,544.00
  5. Step 5: Solve for x
    x = 289,859,578,544.00/564,505.62
  6. Step 6: Final answer
    x = 513,475.10

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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.