Home / 765,907.24-1,145,660.88-538,186.90

Finding the Fourth Proportional to 765,907.24, 1,145,660.88 and 538,186.90

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Solution

The fourth proportional to 765,907.24, 1,145,660.88 and 538,186.90 is: 805,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,907.24 : 1,145,660.88 = 538,186.90 : x
  2. Step 2: Convert to fraction form
    765,907.24/1,145,660.88 = 538,186.90/x
  3. Step 3: Cross multiply
    765,907.24x = 1,145,660.88 × 538,186.90
  4. Step 4: Simplify right side
    765,907.24x = 616,579,677,458.47
  5. Step 5: Solve for x
    x = 616,579,677,458.47/765,907.24
  6. Step 6: Final answer
    x = 805,031.79

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1.5x scale

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.