Home / 1,159,489.20-1,739,233.80-318,039.60

Finding the Fourth Proportional to 1,159,489.20, 1,739,233.80 and 318,039.60

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Solution

The fourth proportional to 1,159,489.20, 1,739,233.80 and 318,039.60 is: 477,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,489.20 : 1,739,233.80 = 318,039.60 : x
  2. Step 2: Convert to fraction form
    1,159,489.20/1,739,233.80 = 318,039.60/x
  3. Step 3: Cross multiply
    1,159,489.20x = 1,739,233.80 × 318,039.60
  4. Step 4: Simplify right side
    1,159,489.20x = 553,145,222,058.48
  5. Step 5: Solve for x
    x = 553,145,222,058.48/1,159,489.20
  6. Step 6: Final answer
    x = 477,059.40

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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.