Home / 1,385,321.30-2,078,293.59-486,825.15

Finding the Fourth Proportional to 1,385,321.30, 2,078,293.59 and 486,825.15

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Solution

The fourth proportional to 1,385,321.30, 2,078,293.59 and 486,825.15 is: 730,347.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,321.30 : 2,078,293.59 = 486,825.15 : x
  2. Step 2: Convert to fraction form
    1,385,321.30/2,078,293.59 = 486,825.15/x
  3. Step 3: Cross multiply
    1,385,321.30x = 2,078,293.59 × 486,825.15
  4. Step 4: Simplify right side
    1,385,321.30x = 1,011,765,588,695.79
  5. Step 5: Solve for x
    x = 1,011,765,588,695.79/1,385,321.30
  6. Step 6: Final answer
    x = 730,347.24

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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.