Home / 761,710.20-1,142,569.38-229,227.60

Finding the Fourth Proportional to 761,710.20, 1,142,569.38 and 229,227.60

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Solution

The fourth proportional to 761,710.20, 1,142,569.38 and 229,227.60 is: 343,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,710.20 : 1,142,569.38 = 229,227.60 : x
  2. Step 2: Convert to fraction form
    761,710.20/1,142,569.38 = 229,227.60/x
  3. Step 3: Cross multiply
    761,710.20x = 1,142,569.38 × 229,227.60
  4. Step 4: Simplify right side
    761,710.20x = 261,908,436,810.89
  5. Step 5: Solve for x
    x = 261,908,436,810.89/761,710.20
  6. Step 6: Final answer
    x = 343,842.63

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Double scale
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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.