Home / 987,973.29-1,482,047.42-278,007.48

Finding the Fourth Proportional to 987,973.29, 1,482,047.42 and 278,007.48

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Solution

The fourth proportional to 987,973.29, 1,482,047.42 and 278,007.48 is: 417,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,973.29 : 1,482,047.42 = 278,007.48 : x
  2. Step 2: Convert to fraction form
    987,973.29/1,482,047.42 = 278,007.48/x
  3. Step 3: Cross multiply
    987,973.29x = 1,482,047.42 × 278,007.48
  4. Step 4: Simplify right side
    987,973.29x = 412,020,267,084.66
  5. Step 5: Solve for x
    x = 412,020,267,084.66/987,973.29
  6. Step 6: Final answer
    x = 417,035.84

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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.