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Finding the Fourth Proportional to 498,603.84, 688,070.56 and 272,247.72

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Solution

The fourth proportional to 498,603.84, 688,070.56 and 272,247.72 is: 375,700.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,603.84 : 688,070.56 = 272,247.72 : x
  2. Step 2: Convert to fraction form
    498,603.84/688,070.56 = 272,247.72/x
  3. Step 3: Cross multiply
    498,603.84x = 688,070.56 × 272,247.72
  4. Step 4: Simplify right side
    498,603.84x = 187,325,641,159.12
  5. Step 5: Solve for x
    x = 187,325,641,159.12/498,603.84
  6. Step 6: Final answer
    x = 375,700.36

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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.