Home / 913,423.20-1,370,134.80-441,031.20

Finding the Fourth Proportional to 913,423.20, 1,370,134.80 and 441,031.20

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Solution

The fourth proportional to 913,423.20, 1,370,134.80 and 441,031.20 is: 661,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,423.20 : 1,370,134.80 = 441,031.20 : x
  2. Step 2: Convert to fraction form
    913,423.20/1,370,134.80 = 441,031.20/x
  3. Step 3: Cross multiply
    913,423.20x = 1,370,134.80 × 441,031.20
  4. Step 4: Simplify right side
    913,423.20x = 604,272,195,005.76
  5. Step 5: Solve for x
    x = 604,272,195,005.76/913,423.20
  6. Step 6: Final answer
    x = 661,546.80

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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.