Home / 747,665.74-1,031,778.30-408,133.90

Finding the Fourth Proportional to 747,665.74, 1,031,778.30 and 408,133.90

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Solution

The fourth proportional to 747,665.74, 1,031,778.30 and 408,133.90 is: 563,224.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,665.74 : 1,031,778.30 = 408,133.90 : x
  2. Step 2: Convert to fraction form
    747,665.74/1,031,778.30 = 408,133.90/x
  3. Step 3: Cross multiply
    747,665.74x = 1,031,778.30 × 408,133.90
  4. Step 4: Simplify right side
    747,665.74x = 421,103,701,514.37
  5. Step 5: Solve for x
    x = 421,103,701,514.37/747,665.74
  6. Step 6: Final answer
    x = 563,224.55

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Double scale
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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.