Home / 712,437.76-1,068,343.44-213,685.12

Finding the Fourth Proportional to 712,437.76, 1,068,343.44 and 213,685.12

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Solution

The fourth proportional to 712,437.76, 1,068,343.44 and 213,685.12 is: 320,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,437.76 : 1,068,343.44 = 213,685.12 : x
  2. Step 2: Convert to fraction form
    712,437.76/1,068,343.44 = 213,685.12/x
  3. Step 3: Cross multiply
    712,437.76x = 1,068,343.44 × 213,685.12
  4. Step 4: Simplify right side
    712,437.76x = 228,289,096,177.61
  5. Step 5: Solve for x
    x = 228,289,096,177.61/712,437.76
  6. Step 6: Final answer
    x = 320,433.74

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Double scale
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Similar ratio
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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.