Home / 645,952.32-890,490.38-454,371.12

Finding the Fourth Proportional to 645,952.32, 890,490.38 and 454,371.12

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Solution

The fourth proportional to 645,952.32, 890,490.38 and 454,371.12 is: 626,382.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,952.32 : 890,490.38 = 454,371.12 : x
  2. Step 2: Convert to fraction form
    645,952.32/890,490.38 = 454,371.12/x
  3. Step 3: Cross multiply
    645,952.32x = 890,490.38 × 454,371.12
  4. Step 4: Simplify right side
    645,952.32x = 404,613,109,037.97
  5. Step 5: Solve for x
    x = 404,613,109,037.97/645,952.32
  6. Step 6: Final answer
    x = 626,382.31

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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.