Home / 1,312,668.20-1,969,002.30-887,515.40

Finding the Fourth Proportional to 1,312,668.20, 1,969,002.30 and 887,515.40

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Solution

The fourth proportional to 1,312,668.20, 1,969,002.30 and 887,515.40 is: 1,331,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,668.20 : 1,969,002.30 = 887,515.40 : x
  2. Step 2: Convert to fraction form
    1,312,668.20/1,969,002.30 = 887,515.40/x
  3. Step 3: Cross multiply
    1,312,668.20x = 1,969,002.30 × 887,515.40
  4. Step 4: Simplify right side
    1,312,668.20x = 1,747,519,863,885.42
  5. Step 5: Solve for x
    x = 1,747,519,863,885.42/1,312,668.20
  6. Step 6: Final answer
    x = 1,331,273.10

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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.