Home / 742,780.80-1,114,171.20-210,304.62

Finding the Fourth Proportional to 742,780.80, 1,114,171.20 and 210,304.62

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Solution

The fourth proportional to 742,780.80, 1,114,171.20 and 210,304.62 is: 315,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,780.80 : 1,114,171.20 = 210,304.62 : x
  2. Step 2: Convert to fraction form
    742,780.80/1,114,171.20 = 210,304.62/x
  3. Step 3: Cross multiply
    742,780.80x = 1,114,171.20 × 210,304.62
  4. Step 4: Simplify right side
    742,780.80x = 234,315,350,830.94
  5. Step 5: Solve for x
    x = 234,315,350,830.94/742,780.80
  6. Step 6: Final answer
    x = 315,456.93

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Similar ratio
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1.5x scale

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.