Home / 989,097.59-1,483,438.78-278,959.55

Finding the Fourth Proportional to 989,097.59, 1,483,438.78 and 278,959.55

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Solution

The fourth proportional to 989,097.59, 1,483,438.78 and 278,959.55 is: 418,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,097.59 : 1,483,438.78 = 278,959.55 : x
  2. Step 2: Convert to fraction form
    989,097.59/1,483,438.78 = 278,959.55/x
  3. Step 3: Cross multiply
    989,097.59x = 1,483,438.78 × 278,959.55
  4. Step 4: Simplify right side
    989,097.59x = 413,819,416,831.36
  5. Step 5: Solve for x
    x = 413,819,416,831.36/989,097.59
  6. Step 6: Final answer
    x = 418,380.78

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1.5x scale

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.