Home / 3,138,972.40-4,711,957.80-1,721,796.40

Finding the Fourth Proportional to 3,138,972.40, 4,711,957.80 and 1,721,796.40

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Solution

The fourth proportional to 3,138,972.40, 4,711,957.80 and 1,721,796.40 is: 2,584,613.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,972.40 : 4,711,957.80 = 1,721,796.40 : x
  2. Step 2: Convert to fraction form
    3,138,972.40/4,711,957.80 = 1,721,796.40/x
  3. Step 3: Cross multiply
    3,138,972.40x = 4,711,957.80 × 1,721,796.40
  4. Step 4: Simplify right side
    3,138,972.40x = 8,113,031,976,991.92
  5. Step 5: Solve for x
    x = 8,113,031,976,991.92/3,138,972.40
  6. Step 6: Final answer
    x = 2,584,613.99

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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.