Home / 778,911.20-1,167,445.20-329,631.20

Finding the Fourth Proportional to 778,911.20, 1,167,445.20 and 329,631.20

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Solution

The fourth proportional to 778,911.20, 1,167,445.20 and 329,631.20 is: 494,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,911.20 : 1,167,445.20 = 329,631.20 : x
  2. Step 2: Convert to fraction form
    778,911.20/1,167,445.20 = 329,631.20/x
  3. Step 3: Cross multiply
    778,911.20x = 1,167,445.20 × 329,631.20
  4. Step 4: Simplify right side
    778,911.20x = 384,826,362,210.24
  5. Step 5: Solve for x
    x = 384,826,362,210.24/778,911.20
  6. Step 6: Final answer
    x = 494,056.78

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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.