Home / 918,076.20-1,377,308.70-278,327.40

Finding the Fourth Proportional to 918,076.20, 1,377,308.70 and 278,327.40

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Solution

The fourth proportional to 918,076.20, 1,377,308.70 and 278,327.40 is: 417,550.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,076.20 : 1,377,308.70 = 278,327.40 : x
  2. Step 2: Convert to fraction form
    918,076.20/1,377,308.70 = 278,327.40/x
  3. Step 3: Cross multiply
    918,076.20x = 1,377,308.70 × 278,327.40
  4. Step 4: Simplify right side
    918,076.20x = 383,342,749,468.38
  5. Step 5: Solve for x
    x = 383,342,749,468.38/918,076.20
  6. Step 6: Final answer
    x = 417,550.04

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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.