Home / 5,472,847.20-8,209,270.80-1,687,490.40

Finding the Fourth Proportional to 5,472,847.20, 8,209,270.80 and 1,687,490.40

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Solution

The fourth proportional to 5,472,847.20, 8,209,270.80 and 1,687,490.40 is: 2,531,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472,847.20 : 8,209,270.80 = 1,687,490.40 : x
  2. Step 2: Convert to fraction form
    5,472,847.20/8,209,270.80 = 1,687,490.40/x
  3. Step 3: Cross multiply
    5,472,847.20x = 8,209,270.80 × 1,687,490.40
  4. Step 4: Simplify right side
    5,472,847.20x = 13,853,065,666,000.32
  5. Step 5: Solve for x
    x = 13,853,065,666,000.32/5,472,847.20
  6. Step 6: Final answer
    x = 2,531,235.60

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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.