Home / 756,003.70-1,134,005.55-437,139.10

Finding the Fourth Proportional to 756,003.70, 1,134,005.55 and 437,139.10

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Solution

The fourth proportional to 756,003.70, 1,134,005.55 and 437,139.10 is: 655,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,003.70 : 1,134,005.55 = 437,139.10 : x
  2. Step 2: Convert to fraction form
    756,003.70/1,134,005.55 = 437,139.10/x
  3. Step 3: Cross multiply
    756,003.70x = 1,134,005.55 × 437,139.10
  4. Step 4: Simplify right side
    756,003.70x = 495,718,165,522.01
  5. Step 5: Solve for x
    x = 495,718,165,522.01/756,003.70
  6. Step 6: Final answer
    x = 655,708.65

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Double scale
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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.