Home / 1,258,138.20-1,736,374.14-748,842.20

Finding the Fourth Proportional to 1,258,138.20, 1,736,374.14 and 748,842.20

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Solution

The fourth proportional to 1,258,138.20, 1,736,374.14 and 748,842.20 is: 1,033,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,138.20 : 1,736,374.14 = 748,842.20 : x
  2. Step 2: Convert to fraction form
    1,258,138.20/1,736,374.14 = 748,842.20/x
  3. Step 3: Cross multiply
    1,258,138.20x = 1,736,374.14 × 748,842.20
  4. Step 4: Simplify right side
    1,258,138.20x = 1,300,270,231,020.71
  5. Step 5: Solve for x
    x = 1,300,270,231,020.71/1,258,138.20
  6. Step 6: Final answer
    x = 1,033,487.60

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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.