Home / 987,320.20-1,481,028.90-514,928.20

Finding the Fourth Proportional to 987,320.20, 1,481,028.90 and 514,928.20

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Solution

The fourth proportional to 987,320.20, 1,481,028.90 and 514,928.20 is: 772,417.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,320.20 : 1,481,028.90 = 514,928.20 : x
  2. Step 2: Convert to fraction form
    987,320.20/1,481,028.90 = 514,928.20/x
  3. Step 3: Cross multiply
    987,320.20x = 1,481,028.90 × 514,928.20
  4. Step 4: Simplify right side
    987,320.20x = 762,623,545,624.98
  5. Step 5: Solve for x
    x = 762,623,545,624.98/987,320.20
  6. Step 6: Final answer
    x = 772,417.65

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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.