Home / 939,430.92-1,288,443.63-900,851.88

Finding the Fourth Proportional to 939,430.92, 1,288,443.63 and 900,851.88

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Solution

The fourth proportional to 939,430.92, 1,288,443.63 and 900,851.88 is: 1,235,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,430.92 : 1,288,443.63 = 900,851.88 : x
  2. Step 2: Convert to fraction form
    939,430.92/1,288,443.63 = 900,851.88/x
  3. Step 3: Cross multiply
    939,430.92x = 1,288,443.63 × 900,851.88
  4. Step 4: Simplify right side
    939,430.92x = 1,160,696,866,359.52
  5. Step 5: Solve for x
    x = 1,160,696,866,359.52/939,430.92
  6. Step 6: Final answer
    x = 1,235,531.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.