Home / 931,559.40-1,397,339.10-830,082.60

Finding the Fourth Proportional to 931,559.40, 1,397,339.10 and 830,082.60

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Solution

The fourth proportional to 931,559.40, 1,397,339.10 and 830,082.60 is: 1,245,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,559.40 : 1,397,339.10 = 830,082.60 : x
  2. Step 2: Convert to fraction form
    931,559.40/1,397,339.10 = 830,082.60/x
  3. Step 3: Cross multiply
    931,559.40x = 1,397,339.10 × 830,082.60
  4. Step 4: Simplify right side
    931,559.40x = 1,159,906,873,209.66
  5. Step 5: Solve for x
    x = 1,159,906,873,209.66/931,559.40
  6. Step 6: Final answer
    x = 1,245,123.90

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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.