Home / 1,428,305.15-2,142,469.85-363,348.11

Finding the Fourth Proportional to 1,428,305.15, 2,142,469.85 and 363,348.11

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Solution

The fourth proportional to 1,428,305.15, 2,142,469.85 and 363,348.11 is: 545,025.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,305.15 : 2,142,469.85 = 363,348.11 : x
  2. Step 2: Convert to fraction form
    1,428,305.15/2,142,469.85 = 363,348.11/x
  3. Step 3: Cross multiply
    1,428,305.15x = 2,142,469.85 × 363,348.11
  4. Step 4: Simplify right side
    1,428,305.15x = 778,462,370,729.48
  5. Step 5: Solve for x
    x = 778,462,370,729.48/1,428,305.15
  6. Step 6: Final answer
    x = 545,025.25

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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.