Home / 781,870.91-1,078,929.02-432,986.27

Finding the Fourth Proportional to 781,870.91, 1,078,929.02 and 432,986.27

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Solution

The fourth proportional to 781,870.91, 1,078,929.02 and 432,986.27 is: 597,491.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,870.91 : 1,078,929.02 = 432,986.27 : x
  2. Step 2: Convert to fraction form
    781,870.91/1,078,929.02 = 432,986.27/x
  3. Step 3: Cross multiply
    781,870.91x = 1,078,929.02 × 432,986.27
  4. Step 4: Simplify right side
    781,870.91x = 467,161,449,799.62
  5. Step 5: Solve for x
    x = 467,161,449,799.62/781,870.91
  6. Step 6: Final answer
    x = 597,491.79

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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.