Home / 779,687.10-1,169,919.45-442,986.30

Finding the Fourth Proportional to 779,687.10, 1,169,919.45 and 442,986.30

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Solution

The fourth proportional to 779,687.10, 1,169,919.45 and 442,986.30 is: 664,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,687.10 : 1,169,919.45 = 442,986.30 : x
  2. Step 2: Convert to fraction form
    779,687.10/1,169,919.45 = 442,986.30/x
  3. Step 3: Cross multiply
    779,687.10x = 1,169,919.45 × 442,986.30
  4. Step 4: Simplify right side
    779,687.10x = 518,258,288,453.54
  5. Step 5: Solve for x
    x = 518,258,288,453.54/779,687.10
  6. Step 6: Final answer
    x = 664,700.35

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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.