Home / 758,464.68-1,138,028.76-359,390.64

Finding the Fourth Proportional to 758,464.68, 1,138,028.76 and 359,390.64

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Solution

The fourth proportional to 758,464.68, 1,138,028.76 and 359,390.64 is: 539,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,464.68 : 1,138,028.76 = 359,390.64 : x
  2. Step 2: Convert to fraction form
    758,464.68/1,138,028.76 = 359,390.64/x
  3. Step 3: Cross multiply
    758,464.68x = 1,138,028.76 × 359,390.64
  4. Step 4: Simplify right side
    758,464.68x = 408,996,884,394.81
  5. Step 5: Solve for x
    x = 408,996,884,394.81/758,464.68
  6. Step 6: Final answer
    x = 539,243.15

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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.