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Finding the Fourth Proportional to 891,750.76, 1,337,600.22 and 260,679.40

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Solution

The fourth proportional to 891,750.76, 1,337,600.22 and 260,679.40 is: 391,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,750.76 : 1,337,600.22 = 260,679.40 : x
  2. Step 2: Convert to fraction form
    891,750.76/1,337,600.22 = 260,679.40/x
  3. Step 3: Cross multiply
    891,750.76x = 1,337,600.22 × 260,679.40
  4. Step 4: Simplify right side
    891,750.76x = 348,684,822,789.47
  5. Step 5: Solve for x
    x = 348,684,822,789.47/891,750.76
  6. Step 6: Final answer
    x = 391,011.52

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1.5x scale

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.