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Finding the Fourth Proportional to 514,165.40, 771,248.10 and 514,165.40

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Solution

The fourth proportional to 514,165.40, 771,248.10 and 514,165.40 is: 771,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,165.40 : 771,248.10 = 514,165.40 : x
  2. Step 2: Convert to fraction form
    514,165.40/771,248.10 = 514,165.40/x
  3. Step 3: Cross multiply
    514,165.40x = 771,248.10 × 514,165.40
  4. Step 4: Simplify right side
    514,165.40x = 396,549,087,835.74
  5. Step 5: Solve for x
    x = 396,549,087,835.74/514,165.40
  6. Step 6: Final answer
    x = 771,248.10

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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.