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Finding the Fourth Proportional to 691,440, 1,037,160 and 224,496

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Solution

The fourth proportional to 691,440, 1,037,160 and 224,496 is: 336,744

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,440 : 1,037,160 = 224,496 : x
  2. Step 2: Convert to fraction form
    691,440/1,037,160 = 224,496/x
  3. Step 3: Cross multiply
    691,440x = 1,037,160 × 224,496
  4. Step 4: Simplify right side
    691,440x = 232,838,271,360
  5. Step 5: Solve for x
    x = 232,838,271,360/691,440
  6. Step 6: Final answer
    x = 336,744

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.