Home / 766,326.20-1,150,007.70-429,366.20

Finding the Fourth Proportional to 766,326.20, 1,150,007.70 and 429,366.20

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Solution

The fourth proportional to 766,326.20, 1,150,007.70 and 429,366.20 is: 644,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,326.20 : 1,150,007.70 = 429,366.20 : x
  2. Step 2: Convert to fraction form
    766,326.20/1,150,007.70 = 429,366.20/x
  3. Step 3: Cross multiply
    766,326.20x = 1,150,007.70 × 429,366.20
  4. Step 4: Simplify right side
    766,326.20x = 493,774,436,119.74
  5. Step 5: Solve for x
    x = 493,774,436,119.74/766,326.20
  6. Step 6: Final answer
    x = 644,339.76

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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.