Home / 808,452.90-1,115,663.22-486,349.92

Finding the Fourth Proportional to 808,452.90, 1,115,663.22 and 486,349.92

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Solution

The fourth proportional to 808,452.90, 1,115,663.22 and 486,349.92 is: 671,161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,452.90 : 1,115,663.22 = 486,349.92 : x
  2. Step 2: Convert to fraction form
    808,452.90/1,115,663.22 = 486,349.92/x
  3. Step 3: Cross multiply
    808,452.90x = 1,115,663.22 × 486,349.92
  4. Step 4: Simplify right side
    808,452.90x = 542,602,717,793.94
  5. Step 5: Solve for x
    x = 542,602,717,793.94/808,452.90
  6. Step 6: Final answer
    x = 671,161.82

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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.