Home / 847,127.04-1,268,739.36-509,426.88

Finding the Fourth Proportional to 847,127.04, 1,268,739.36 and 509,426.88

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Solution

The fourth proportional to 847,127.04, 1,268,739.36 and 509,426.88 is: 762,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,127.04 : 1,268,739.36 = 509,426.88 : x
  2. Step 2: Convert to fraction form
    847,127.04/1,268,739.36 = 509,426.88/x
  3. Step 3: Cross multiply
    847,127.04x = 1,268,739.36 × 509,426.88
  4. Step 4: Simplify right side
    847,127.04x = 646,329,933,698.00
  5. Step 5: Solve for x
    x = 646,329,933,698.00/847,127.04
  6. Step 6: Final answer
    x = 762,966.95

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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.