Home / 987,973.11-1,482,047.13-278,007.30

Finding the Fourth Proportional to 987,973.11, 1,482,047.13 and 278,007.30

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Solution

The fourth proportional to 987,973.11, 1,482,047.13 and 278,007.30 is: 417,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,973.11 : 1,482,047.13 = 278,007.30 : x
  2. Step 2: Convert to fraction form
    987,973.11/1,482,047.13 = 278,007.30/x
  3. Step 3: Cross multiply
    987,973.11x = 1,482,047.13 × 278,007.30
  4. Step 4: Simplify right side
    987,973.11x = 412,019,921,084.05
  5. Step 5: Solve for x
    x = 412,019,921,084.05/987,973.11
  6. Step 6: Final answer
    x = 417,035.56

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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.