Home / 746,908.70-1,119,131.85-430,814.30

Finding the Fourth Proportional to 746,908.70, 1,119,131.85 and 430,814.30

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Solution

The fourth proportional to 746,908.70, 1,119,131.85 and 430,814.30 is: 645,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,908.70 : 1,119,131.85 = 430,814.30 : x
  2. Step 2: Convert to fraction form
    746,908.70/1,119,131.85 = 430,814.30/x
  3. Step 3: Cross multiply
    746,908.70x = 1,119,131.85 × 430,814.30
  4. Step 4: Simplify right side
    746,908.70x = 482,138,004,565.46
  5. Step 5: Solve for x
    x = 482,138,004,565.46/746,908.70
  6. Step 6: Final answer
    x = 645,511.30

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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.