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Finding the Fourth Proportional to 657,082.80, 985,235.40 and 342,154.80

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Solution

The fourth proportional to 657,082.80, 985,235.40 and 342,154.80 is: 513,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,082.80 : 985,235.40 = 342,154.80 : x
  2. Step 2: Convert to fraction form
    657,082.80/985,235.40 = 342,154.80/x
  3. Step 3: Cross multiply
    657,082.80x = 985,235.40 × 342,154.80
  4. Step 4: Simplify right side
    657,082.80x = 337,103,021,239.92
  5. Step 5: Solve for x
    x = 337,103,021,239.92/657,082.80
  6. Step 6: Final answer
    x = 513,029.74

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1.5x scale

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.