Home / 1,247,079.20-1,872,001.20-774,298.40

Finding the Fourth Proportional to 1,247,079.20, 1,872,001.20 and 774,298.40

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Solution

The fourth proportional to 1,247,079.20, 1,872,001.20 and 774,298.40 is: 1,162,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,079.20 : 1,872,001.20 = 774,298.40 : x
  2. Step 2: Convert to fraction form
    1,247,079.20/1,872,001.20 = 774,298.40/x
  3. Step 3: Cross multiply
    1,247,079.20x = 1,872,001.20 × 774,298.40
  4. Step 4: Simplify right side
    1,247,079.20x = 1,449,487,533,958.08
  5. Step 5: Solve for x
    x = 1,449,487,533,958.08/1,247,079.20
  6. Step 6: Final answer
    x = 1,162,305.92

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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.