Home / 1,148,957.91-1,585,321.56-665,494.20

Finding the Fourth Proportional to 1,148,957.91, 1,585,321.56 and 665,494.20

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Solution

The fourth proportional to 1,148,957.91, 1,585,321.56 and 665,494.20 is: 918,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,957.91 : 1,585,321.56 = 665,494.20 : x
  2. Step 2: Convert to fraction form
    1,148,957.91/1,585,321.56 = 665,494.20/x
  3. Step 3: Cross multiply
    1,148,957.91x = 1,585,321.56 × 665,494.20
  4. Step 4: Simplify right side
    1,148,957.91x = 1,055,022,303,314.95
  5. Step 5: Solve for x
    x = 1,055,022,303,314.95/1,148,957.91
  6. Step 6: Final answer
    x = 918,242.78

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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.