Home / 4,981,680-7,472,527.20-1,387,457.28

Finding the Fourth Proportional to 4,981,680, 7,472,527.20 and 1,387,457.28

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Solution

The fourth proportional to 4,981,680, 7,472,527.20 and 1,387,457.28 is: 2,081,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981,680 : 7,472,527.20 = 1,387,457.28 : x
  2. Step 2: Convert to fraction form
    4,981,680/7,472,527.20 = 1,387,457.28/x
  3. Step 3: Cross multiply
    4,981,680x = 7,472,527.20 × 1,387,457.28
  4. Step 4: Simplify right side
    4,981,680x = 10,367,812,263,638.02
  5. Step 5: Solve for x
    x = 10,367,812,263,638.02/4,981,680
  6. Step 6: Final answer
    x = 2,081,187.93

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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.