Home / 756,072.30-1,134,108.45-457,473.90

Finding the Fourth Proportional to 756,072.30, 1,134,108.45 and 457,473.90

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Solution

The fourth proportional to 756,072.30, 1,134,108.45 and 457,473.90 is: 686,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,072.30 : 1,134,108.45 = 457,473.90 : x
  2. Step 2: Convert to fraction form
    756,072.30/1,134,108.45 = 457,473.90/x
  3. Step 3: Cross multiply
    756,072.30x = 1,134,108.45 × 457,473.90
  4. Step 4: Simplify right side
    756,072.30x = 518,825,015,644.46
  5. Step 5: Solve for x
    x = 518,825,015,644.46/756,072.30
  6. Step 6: Final answer
    x = 686,210.85

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Double scale
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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.