Home / 987,530.20-1,481,295.30-828,097.90

Finding the Fourth Proportional to 987,530.20, 1,481,295.30 and 828,097.90

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Solution

The fourth proportional to 987,530.20, 1,481,295.30 and 828,097.90 is: 1,242,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,530.20 : 1,481,295.30 = 828,097.90 : x
  2. Step 2: Convert to fraction form
    987,530.20/1,481,295.30 = 828,097.90/x
  3. Step 3: Cross multiply
    987,530.20x = 1,481,295.30 × 828,097.90
  4. Step 4: Simplify right side
    987,530.20x = 1,226,657,527,209.87
  5. Step 5: Solve for x
    x = 1,226,657,527,209.87/987,530.20
  6. Step 6: Final answer
    x = 1,242,146.85

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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.