Home / 727,739.40-1,091,609.10-651,631.80

Finding the Fourth Proportional to 727,739.40, 1,091,609.10 and 651,631.80

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Solution

The fourth proportional to 727,739.40, 1,091,609.10 and 651,631.80 is: 977,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,739.40 : 1,091,609.10 = 651,631.80 : x
  2. Step 2: Convert to fraction form
    727,739.40/1,091,609.10 = 651,631.80/x
  3. Step 3: Cross multiply
    727,739.40x = 1,091,609.10 × 651,631.80
  4. Step 4: Simplify right side
    727,739.40x = 711,327,202,729.38
  5. Step 5: Solve for x
    x = 711,327,202,729.38/727,739.40
  6. Step 6: Final answer
    x = 977,447.70

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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.