Home / 670,502.20-1,005,753.30-664,281.40

Finding the Fourth Proportional to 670,502.20, 1,005,753.30 and 664,281.40

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Solution

The fourth proportional to 670,502.20, 1,005,753.30 and 664,281.40 is: 996,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,502.20 : 1,005,753.30 = 664,281.40 : x
  2. Step 2: Convert to fraction form
    670,502.20/1,005,753.30 = 664,281.40/x
  3. Step 3: Cross multiply
    670,502.20x = 1,005,753.30 × 664,281.40
  4. Step 4: Simplify right side
    670,502.20x = 668,103,210,178.62
  5. Step 5: Solve for x
    x = 668,103,210,178.62/670,502.20
  6. Step 6: Final answer
    x = 996,422.10

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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.