Home / 987,891.20-1,363,289.60-535,182.08

Finding the Fourth Proportional to 987,891.20, 1,363,289.60 and 535,182.08

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Solution

The fourth proportional to 987,891.20, 1,363,289.60 and 535,182.08 is: 738,551.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,891.20 : 1,363,289.60 = 535,182.08 : x
  2. Step 2: Convert to fraction form
    987,891.20/1,363,289.60 = 535,182.08/x
  3. Step 3: Cross multiply
    987,891.20x = 1,363,289.60 × 535,182.08
  4. Step 4: Simplify right side
    987,891.20x = 729,608,163,770.37
  5. Step 5: Solve for x
    x = 729,608,163,770.37/987,891.20
  6. Step 6: Final answer
    x = 738,551.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.