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Finding the Fourth Proportional to 453,872.30, 680,808.45 and 425,878.70

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Solution

The fourth proportional to 453,872.30, 680,808.45 and 425,878.70 is: 638,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,872.30 : 680,808.45 = 425,878.70 : x
  2. Step 2: Convert to fraction form
    453,872.30/680,808.45 = 425,878.70/x
  3. Step 3: Cross multiply
    453,872.30x = 680,808.45 × 425,878.70
  4. Step 4: Simplify right side
    453,872.30x = 289,941,817,635.02
  5. Step 5: Solve for x
    x = 289,941,817,635.02/453,872.30
  6. Step 6: Final answer
    x = 638,818.05

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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.