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Finding the Fourth Proportional to 657,249.80, 985,874.70 and 545,056.70

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Solution

The fourth proportional to 657,249.80, 985,874.70 and 545,056.70 is: 817,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,249.80 : 985,874.70 = 545,056.70 : x
  2. Step 2: Convert to fraction form
    657,249.80/985,874.70 = 545,056.70/x
  3. Step 3: Cross multiply
    657,249.80x = 985,874.70 × 545,056.70
  4. Step 4: Simplify right side
    657,249.80x = 537,357,610,595.49
  5. Step 5: Solve for x
    x = 537,357,610,595.49/657,249.80
  6. Step 6: Final answer
    x = 817,585.05

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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.