Home / 889,139.20-1,329,772.20-747,421.60

Finding the Fourth Proportional to 889,139.20, 1,329,772.20 and 747,421.60

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Solution

The fourth proportional to 889,139.20, 1,329,772.20 and 747,421.60 is: 1,117,823.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,139.20 : 1,329,772.20 = 747,421.60 : x
  2. Step 2: Convert to fraction form
    889,139.20/1,329,772.20 = 747,421.60/x
  3. Step 3: Cross multiply
    889,139.20x = 1,329,772.20 × 747,421.60
  4. Step 4: Simplify right side
    889,139.20x = 993,900,465,359.52
  5. Step 5: Solve for x
    x = 993,900,465,359.52/889,139.20
  6. Step 6: Final answer
    x = 1,117,823.24

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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.