Home / 778,672.24-1,074,364.20-456,209.20

Finding the Fourth Proportional to 778,672.24, 1,074,364.20 and 456,209.20

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Solution

The fourth proportional to 778,672.24, 1,074,364.20 and 456,209.20 is: 629,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,672.24 : 1,074,364.20 = 456,209.20 : x
  2. Step 2: Convert to fraction form
    778,672.24/1,074,364.20 = 456,209.20/x
  3. Step 3: Cross multiply
    778,672.24x = 1,074,364.20 × 456,209.20
  4. Step 4: Simplify right side
    778,672.24x = 490,134,832,190.64
  5. Step 5: Solve for x
    x = 490,134,832,190.64/778,672.24
  6. Step 6: Final answer
    x = 629,449.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.