Home / 1,239,753.60-1,859,947.20-398,313.60

Finding the Fourth Proportional to 1,239,753.60, 1,859,947.20 and 398,313.60

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Solution

The fourth proportional to 1,239,753.60, 1,859,947.20 and 398,313.60 is: 597,572.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,753.60 : 1,859,947.20 = 398,313.60 : x
  2. Step 2: Convert to fraction form
    1,239,753.60/1,859,947.20 = 398,313.60/x
  3. Step 3: Cross multiply
    1,239,753.60x = 1,859,947.20 × 398,313.60
  4. Step 4: Simplify right side
    1,239,753.60x = 740,842,265,041.92
  5. Step 5: Solve for x
    x = 740,842,265,041.92/1,239,753.60
  6. Step 6: Final answer
    x = 597,572.18

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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.