Home / 918,220.60-1,377,330.90-771,254.20

Finding the Fourth Proportional to 918,220.60, 1,377,330.90 and 771,254.20

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Solution

The fourth proportional to 918,220.60, 1,377,330.90 and 771,254.20 is: 1,156,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,220.60 : 1,377,330.90 = 771,254.20 : x
  2. Step 2: Convert to fraction form
    918,220.60/1,377,330.90 = 771,254.20/x
  3. Step 3: Cross multiply
    918,220.60x = 1,377,330.90 × 771,254.20
  4. Step 4: Simplify right side
    918,220.60x = 1,062,272,241,414.78
  5. Step 5: Solve for x
    x = 1,062,272,241,414.78/918,220.60
  6. Step 6: Final answer
    x = 1,156,881.30

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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.