Home / 1,138,882.60-1,708,323.90-720,015.40

Finding the Fourth Proportional to 1,138,882.60, 1,708,323.90 and 720,015.40

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Solution

The fourth proportional to 1,138,882.60, 1,708,323.90 and 720,015.40 is: 1,080,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,882.60 : 1,708,323.90 = 720,015.40 : x
  2. Step 2: Convert to fraction form
    1,138,882.60/1,708,323.90 = 720,015.40/x
  3. Step 3: Cross multiply
    1,138,882.60x = 1,708,323.90 × 720,015.40
  4. Step 4: Simplify right side
    1,138,882.60x = 1,230,019,516,188.06
  5. Step 5: Solve for x
    x = 1,230,019,516,188.06/1,138,882.60
  6. Step 6: Final answer
    x = 1,080,023.10

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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.