Home / 386,412.10-579,618.15-268,216.90

Finding the Fourth Proportional to 386,412.10, 579,618.15 and 268,216.90

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Solution

The fourth proportional to 386,412.10, 579,618.15 and 268,216.90 is: 402,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,412.10 : 579,618.15 = 268,216.90 : x
  2. Step 2: Convert to fraction form
    386,412.10/579,618.15 = 268,216.90/x
  3. Step 3: Cross multiply
    386,412.10x = 579,618.15 × 268,216.90
  4. Step 4: Simplify right side
    386,412.10x = 155,463,383,376.74
  5. Step 5: Solve for x
    x = 155,463,383,376.74/386,412.10
  6. Step 6: Final answer
    x = 402,325.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.