Home / 765,723.08-1,148,757.45-253,386.91

Finding the Fourth Proportional to 765,723.08, 1,148,757.45 and 253,386.91

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Solution

The fourth proportional to 765,723.08, 1,148,757.45 and 253,386.91 is: 380,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,723.08 : 1,148,757.45 = 253,386.91 : x
  2. Step 2: Convert to fraction form
    765,723.08/1,148,757.45 = 253,386.91/x
  3. Step 3: Cross multiply
    765,723.08x = 1,148,757.45 × 253,386.91
  4. Step 4: Simplify right side
    765,723.08x = 291,080,100,594.98
  5. Step 5: Solve for x
    x = 291,080,100,594.98/765,723.08
  6. Step 6: Final answer
    x = 380,137.56

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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.