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Finding the Fourth Proportional to 674,491.53, 930,787.02 and 368,560.86

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Solution

The fourth proportional to 674,491.53, 930,787.02 and 368,560.86 is: 508,607.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,491.53 : 930,787.02 = 368,560.86 : x
  2. Step 2: Convert to fraction form
    674,491.53/930,787.02 = 368,560.86/x
  3. Step 3: Cross multiply
    674,491.53x = 930,787.02 × 368,560.86
  4. Step 4: Simplify right side
    674,491.53x = 343,051,663,162.47
  5. Step 5: Solve for x
    x = 343,051,663,162.47/674,491.53
  6. Step 6: Final answer
    x = 508,607.81

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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.