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Finding the Fourth Proportional to 460,672.04, 636,119.88 and 288,878.78

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Solution

The fourth proportional to 460,672.04, 636,119.88 and 288,878.78 is: 398,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,672.04 : 636,119.88 = 288,878.78 : x
  2. Step 2: Convert to fraction form
    460,672.04/636,119.88 = 288,878.78/x
  3. Step 3: Cross multiply
    460,672.04x = 636,119.88 × 288,878.78
  4. Step 4: Simplify right side
    460,672.04x = 183,761,534,868.15
  5. Step 5: Solve for x
    x = 183,761,534,868.15/460,672.04
  6. Step 6: Final answer
    x = 398,898.82

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1.5x scale

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.