Home / 766,007.28-1,145,810.16-538,286.40

Finding the Fourth Proportional to 766,007.28, 1,145,810.16 and 538,286.40

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Solution

The fourth proportional to 766,007.28, 1,145,810.16 and 538,286.40 is: 805,180.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,007.28 : 1,145,810.16 = 538,286.40 : x
  2. Step 2: Convert to fraction form
    766,007.28/1,145,810.16 = 538,286.40/x
  3. Step 3: Cross multiply
    766,007.28x = 1,145,810.16 × 538,286.40
  4. Step 4: Simplify right side
    766,007.28x = 616,774,026,109.82
  5. Step 5: Solve for x
    x = 616,774,026,109.82/766,007.28
  6. Step 6: Final answer
    x = 805,180.37

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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.