Home / 987,116.10-1,478,600.55-543,365.70

Finding the Fourth Proportional to 987,116.10, 1,478,600.55 and 543,365.70

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Solution

The fourth proportional to 987,116.10, 1,478,600.55 and 543,365.70 is: 813,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,116.10 : 1,478,600.55 = 543,365.70 : x
  2. Step 2: Convert to fraction form
    987,116.10/1,478,600.55 = 543,365.70/x
  3. Step 3: Cross multiply
    987,116.10x = 1,478,600.55 × 543,365.70
  4. Step 4: Simplify right side
    987,116.10x = 803,420,822,871.14
  5. Step 5: Solve for x
    x = 803,420,822,871.14/987,116.10
  6. Step 6: Final answer
    x = 813,907.12

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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.