Home / 779,470.80-1,168,331.40-330,115.20

Finding the Fourth Proportional to 779,470.80, 1,168,331.40 and 330,115.20

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Solution

The fourth proportional to 779,470.80, 1,168,331.40 and 330,115.20 is: 494,802.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,470.80 : 1,168,331.40 = 330,115.20 : x
  2. Step 2: Convert to fraction form
    779,470.80/1,168,331.40 = 330,115.20/x
  3. Step 3: Cross multiply
    779,470.80x = 1,168,331.40 × 330,115.20
  4. Step 4: Simplify right side
    779,470.80x = 385,683,953,777.28
  5. Step 5: Solve for x
    x = 385,683,953,777.28/779,470.80
  6. Step 6: Final answer
    x = 494,802.31

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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.