Home / 1,275,315.20-1,759,867.52-731,423.04

Finding the Fourth Proportional to 1,275,315.20, 1,759,867.52 and 731,423.04

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Solution

The fourth proportional to 1,275,315.20, 1,759,867.52 and 731,423.04 is: 1,009,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,315.20 : 1,759,867.52 = 731,423.04 : x
  2. Step 2: Convert to fraction form
    1,275,315.20/1,759,867.52 = 731,423.04/x
  3. Step 3: Cross multiply
    1,275,315.20x = 1,759,867.52 × 731,423.04
  4. Step 4: Simplify right side
    1,275,315.20x = 1,287,207,651,475.66
  5. Step 5: Solve for x
    x = 1,287,207,651,475.66/1,275,315.20
  6. Step 6: Final answer
    x = 1,009,325.11

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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.