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Finding the Fourth Proportional to 460,768.95, 636,253.92 and 288,976.05

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Solution

The fourth proportional to 460,768.95, 636,253.92 and 288,976.05 is: 399,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,768.95 : 636,253.92 = 288,976.05 : x
  2. Step 2: Convert to fraction form
    460,768.95/636,253.92 = 288,976.05/x
  3. Step 3: Cross multiply
    460,768.95x = 636,253.92 × 288,976.05
  4. Step 4: Simplify right side
    460,768.95x = 183,862,144,598.62
  5. Step 5: Solve for x
    x = 183,862,144,598.62/460,768.95
  6. Step 6: Final answer
    x = 399,033.28

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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.