Home / 804,920.40-1,207,380.60-538,981.20

Finding the Fourth Proportional to 804,920.40, 1,207,380.60 and 538,981.20

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Solution

The fourth proportional to 804,920.40, 1,207,380.60 and 538,981.20 is: 808,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,920.40 : 1,207,380.60 = 538,981.20 : x
  2. Step 2: Convert to fraction form
    804,920.40/1,207,380.60 = 538,981.20/x
  3. Step 3: Cross multiply
    804,920.40x = 1,207,380.60 × 538,981.20
  4. Step 4: Simplify right side
    804,920.40x = 650,755,444,644.72
  5. Step 5: Solve for x
    x = 650,755,444,644.72/804,920.40
  6. Step 6: Final answer
    x = 808,471.80

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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.