Home / 648,141.11-894,301.20-372,445.71

Finding the Fourth Proportional to 648,141.11, 894,301.20 and 372,445.71

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Solution

The fourth proportional to 648,141.11, 894,301.20 and 372,445.71 is: 513,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,141.11 : 894,301.20 = 372,445.71 : x
  2. Step 2: Convert to fraction form
    648,141.11/894,301.20 = 372,445.71/x
  3. Step 3: Cross multiply
    648,141.11x = 894,301.20 × 372,445.71
  4. Step 4: Simplify right side
    648,141.11x = 333,078,643,525.62
  5. Step 5: Solve for x
    x = 333,078,643,525.62/648,141.11
  6. Step 6: Final answer
    x = 513,898.35

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.