Home / 645,905.30-966,488.38-539,025.42

Finding the Fourth Proportional to 645,905.30, 966,488.38 and 539,025.42

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Solution

The fourth proportional to 645,905.30, 966,488.38 and 539,025.42 is: 806,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,905.30 : 966,488.38 = 539,025.42 : x
  2. Step 2: Convert to fraction form
    645,905.30/966,488.38 = 539,025.42/x
  3. Step 3: Cross multiply
    645,905.30x = 966,488.38 × 539,025.42
  4. Step 4: Simplify right side
    645,905.30x = 520,961,803,607.06
  5. Step 5: Solve for x
    x = 520,961,803,607.06/645,905.30
  6. Step 6: Final answer
    x = 806,560.65

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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.