Home / 779,472.80-1,168,334.40-330,117.20

Finding the Fourth Proportional to 779,472.80, 1,168,334.40 and 330,117.20

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Solution

The fourth proportional to 779,472.80, 1,168,334.40 and 330,117.20 is: 494,805.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,472.80 : 1,168,334.40 = 330,117.20 : x
  2. Step 2: Convert to fraction form
    779,472.80/1,168,334.40 = 330,117.20/x
  3. Step 3: Cross multiply
    779,472.80x = 1,168,334.40 × 330,117.20
  4. Step 4: Simplify right side
    779,472.80x = 385,687,280,791.68
  5. Step 5: Solve for x
    x = 385,687,280,791.68/779,472.80
  6. Step 6: Final answer
    x = 494,805.31

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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.