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Finding the Fourth Proportional to 479,535.68, 662,024.40 and 288,596

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Solution

The fourth proportional to 479,535.68, 662,024.40 and 288,596 is: 398,422.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,535.68 : 662,024.40 = 288,596 : x
  2. Step 2: Convert to fraction form
    479,535.68/662,024.40 = 288,596/x
  3. Step 3: Cross multiply
    479,535.68x = 662,024.40 × 288,596
  4. Step 4: Simplify right side
    479,535.68x = 191,057,593,742.40
  5. Step 5: Solve for x
    x = 191,057,593,742.40/479,535.68
  6. Step 6: Final answer
    x = 398,422.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.