Home / 858,069.66-1,287,180.14-318,332.19

Finding the Fourth Proportional to 858,069.66, 1,287,180.14 and 318,332.19

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Solution

The fourth proportional to 858,069.66, 1,287,180.14 and 318,332.19 is: 477,526.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,069.66 : 1,287,180.14 = 318,332.19 : x
  2. Step 2: Convert to fraction form
    858,069.66/1,287,180.14 = 318,332.19/x
  3. Step 3: Cross multiply
    858,069.66x = 1,287,180.14 × 318,332.19
  4. Step 4: Simplify right side
    858,069.66x = 409,750,876,125.97
  5. Step 5: Solve for x
    x = 409,750,876,125.97/858,069.66
  6. Step 6: Final answer
    x = 477,526.35

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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.