Home / 766,435.14-1,148,937.89-260,650.49

Finding the Fourth Proportional to 766,435.14, 1,148,937.89 and 260,650.49

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Solution

The fourth proportional to 766,435.14, 1,148,937.89 and 260,650.49 is: 390,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,435.14 : 1,148,937.89 = 260,650.49 : x
  2. Step 2: Convert to fraction form
    766,435.14/1,148,937.89 = 260,650.49/x
  3. Step 3: Cross multiply
    766,435.14x = 1,148,937.89 × 260,650.49
  4. Step 4: Simplify right side
    766,435.14x = 299,471,216,960.12
  5. Step 5: Solve for x
    x = 299,471,216,960.12/766,435.14
  6. Step 6: Final answer
    x = 390,732.63

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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.