Home / 1,397,301.12-1,928,275.20-761,397.12

Finding the Fourth Proportional to 1,397,301.12, 1,928,275.20 and 761,397.12

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Solution

The fourth proportional to 1,397,301.12, 1,928,275.20 and 761,397.12 is: 1,050,727.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,301.12 : 1,928,275.20 = 761,397.12 : x
  2. Step 2: Convert to fraction form
    1,397,301.12/1,928,275.20 = 761,397.12/x
  3. Step 3: Cross multiply
    1,397,301.12x = 1,928,275.20 × 761,397.12
  4. Step 4: Simplify right side
    1,397,301.12x = 1,468,183,183,847.42
  5. Step 5: Solve for x
    x = 1,468,183,183,847.42/1,397,301.12
  6. Step 6: Final answer
    x = 1,050,727.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.