Home / 891,691.20-1,337,698.80-292,485.60

Finding the Fourth Proportional to 891,691.20, 1,337,698.80 and 292,485.60

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Solution

The fourth proportional to 891,691.20, 1,337,698.80 and 292,485.60 is: 438,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,691.20 : 1,337,698.80 = 292,485.60 : x
  2. Step 2: Convert to fraction form
    891,691.20/1,337,698.80 = 292,485.60/x
  3. Step 3: Cross multiply
    891,691.20x = 1,337,698.80 × 292,485.60
  4. Step 4: Simplify right side
    891,691.20x = 391,257,636,137.28
  5. Step 5: Solve for x
    x = 391,257,636,137.28/891,691.20
  6. Step 6: Final answer
    x = 438,781.54

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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.