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Finding the Fourth Proportional to 887,491.20, 1,330,459.20 and 532,646.40

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Solution

The fourth proportional to 887,491.20, 1,330,459.20 and 532,646.40 is: 798,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,491.20 : 1,330,459.20 = 532,646.40 : x
  2. Step 2: Convert to fraction form
    887,491.20/1,330,459.20 = 532,646.40/x
  3. Step 3: Cross multiply
    887,491.20x = 1,330,459.20 × 532,646.40
  4. Step 4: Simplify right side
    887,491.20x = 708,664,303,226.88
  5. Step 5: Solve for x
    x = 708,664,303,226.88/887,491.20
  6. Step 6: Final answer
    x = 798,502.91

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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.