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Finding the Fourth Proportional to 656,901.80, 985,385.10 and 341,973.80

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Solution

The fourth proportional to 656,901.80, 985,385.10 and 341,973.80 is: 512,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,901.80 : 985,385.10 = 341,973.80 : x
  2. Step 2: Convert to fraction form
    656,901.80/985,385.10 = 341,973.80/x
  3. Step 3: Cross multiply
    656,901.80x = 985,385.10 × 341,973.80
  4. Step 4: Simplify right side
    656,901.80x = 336,975,887,110.38
  5. Step 5: Solve for x
    x = 336,975,887,110.38/656,901.80
  6. Step 6: Final answer
    x = 512,977.57

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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.