Home / 889,939.20-1,335,292.80-516,281.60

Finding the Fourth Proportional to 889,939.20, 1,335,292.80 and 516,281.60

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Solution

The fourth proportional to 889,939.20, 1,335,292.80 and 516,281.60 is: 774,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,939.20 : 1,335,292.80 = 516,281.60 : x
  2. Step 2: Convert to fraction form
    889,939.20/1,335,292.80 = 516,281.60/x
  3. Step 3: Cross multiply
    889,939.20x = 1,335,292.80 × 516,281.60
  4. Step 4: Simplify right side
    889,939.20x = 689,387,103,252.48
  5. Step 5: Solve for x
    x = 689,387,103,252.48/889,939.20
  6. Step 6: Final answer
    x = 774,645.17

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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.