Home / 779,826.40-1,169,739.60-443,903.20

Finding the Fourth Proportional to 779,826.40, 1,169,739.60 and 443,903.20

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Solution

The fourth proportional to 779,826.40, 1,169,739.60 and 443,903.20 is: 665,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,826.40 : 1,169,739.60 = 443,903.20 : x
  2. Step 2: Convert to fraction form
    779,826.40/1,169,739.60 = 443,903.20/x
  3. Step 3: Cross multiply
    779,826.40x = 1,169,739.60 × 443,903.20
  4. Step 4: Simplify right side
    779,826.40x = 519,251,151,606.72
  5. Step 5: Solve for x
    x = 519,251,151,606.72/779,826.40
  6. Step 6: Final answer
    x = 665,854.80

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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.