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Finding the Fourth Proportional to 381,951.40, 572,927.10 and 340,617.10

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Solution

The fourth proportional to 381,951.40, 572,927.10 and 340,617.10 is: 510,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,951.40 : 572,927.10 = 340,617.10 : x
  2. Step 2: Convert to fraction form
    381,951.40/572,927.10 = 340,617.10/x
  3. Step 3: Cross multiply
    381,951.40x = 572,927.10 × 340,617.10
  4. Step 4: Simplify right side
    381,951.40x = 195,148,767,313.41
  5. Step 5: Solve for x
    x = 195,148,767,313.41/381,951.40
  6. Step 6: Final answer
    x = 510,925.65

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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.