Home / 756,000.10-1,134,000.15-257,364.10

Finding the Fourth Proportional to 756,000.10, 1,134,000.15 and 257,364.10

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Solution

The fourth proportional to 756,000.10, 1,134,000.15 and 257,364.10 is: 386,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,000.10 : 1,134,000.15 = 257,364.10 : x
  2. Step 2: Convert to fraction form
    756,000.10/1,134,000.15 = 257,364.10/x
  3. Step 3: Cross multiply
    756,000.10x = 1,134,000.15 × 257,364.10
  4. Step 4: Simplify right side
    756,000.10x = 291,850,928,004.62
  5. Step 5: Solve for x
    x = 291,850,928,004.62/756,000.10
  6. Step 6: Final answer
    x = 386,046.15

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Similar ratio
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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.