Home / 764,851.38-1,147,407.77-315,326.51

Finding the Fourth Proportional to 764,851.38, 1,147,407.77 and 315,326.51

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Solution

The fourth proportional to 764,851.38, 1,147,407.77 and 315,326.51 is: 473,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,851.38 : 1,147,407.77 = 315,326.51 : x
  2. Step 2: Convert to fraction form
    764,851.38/1,147,407.77 = 315,326.51/x
  3. Step 3: Cross multiply
    764,851.38x = 1,147,407.77 × 315,326.51
  4. Step 4: Simplify right side
    764,851.38x = 361,808,091,317.82
  5. Step 5: Solve for x
    x = 361,808,091,317.82/764,851.38
  6. Step 6: Final answer
    x = 473,043.65

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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.