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Finding the Fourth Proportional to 499,056.92, 688,700.34 and 272,702.42

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Solution

The fourth proportional to 499,056.92, 688,700.34 and 272,702.42 is: 376,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,056.92 : 688,700.34 = 272,702.42 : x
  2. Step 2: Convert to fraction form
    499,056.92/688,700.34 = 272,702.42/x
  3. Step 3: Cross multiply
    499,056.92x = 688,700.34 × 272,702.42
  4. Step 4: Simplify right side
    499,056.92x = 187,810,249,372.82
  5. Step 5: Solve for x
    x = 187,810,249,372.82/499,056.92
  6. Step 6: Final answer
    x = 376,330.32

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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.