Home / 865,407.60-1,298,111.40-566,809.20

Finding the Fourth Proportional to 865,407.60, 1,298,111.40 and 566,809.20

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Solution

The fourth proportional to 865,407.60, 1,298,111.40 and 566,809.20 is: 850,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,407.60 : 1,298,111.40 = 566,809.20 : x
  2. Step 2: Convert to fraction form
    865,407.60/1,298,111.40 = 566,809.20/x
  3. Step 3: Cross multiply
    865,407.60x = 1,298,111.40 × 566,809.20
  4. Step 4: Simplify right side
    865,407.60x = 735,781,484,144.88
  5. Step 5: Solve for x
    x = 735,781,484,144.88/865,407.60
  6. Step 6: Final answer
    x = 850,213.80

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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.