Home / 645,957.32-890,497.26-454,376.12

Finding the Fourth Proportional to 645,957.32, 890,497.26 and 454,376.12

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Solution

The fourth proportional to 645,957.32, 890,497.26 and 454,376.12 is: 626,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,957.32 : 890,497.26 = 454,376.12 : x
  2. Step 2: Convert to fraction form
    645,957.32/890,497.26 = 454,376.12/x
  3. Step 3: Cross multiply
    645,957.32x = 890,497.26 × 454,376.12
  4. Step 4: Simplify right side
    645,957.32x = 404,620,689,869.43
  5. Step 5: Solve for x
    x = 404,620,689,869.43/645,957.32
  6. Step 6: Final answer
    x = 626,389.20

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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.