Home / 1,011,512.30-1,517,487.15-538,128.86

Finding the Fourth Proportional to 1,011,512.30, 1,517,487.15 and 538,128.86

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Solution

The fourth proportional to 1,011,512.30, 1,517,487.15 and 538,128.86 is: 807,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,512.30 : 1,517,487.15 = 538,128.86 : x
  2. Step 2: Convert to fraction form
    1,011,512.30/1,517,487.15 = 538,128.86/x
  3. Step 3: Cross multiply
    1,011,512.30x = 1,517,487.15 × 538,128.86
  4. Step 4: Simplify right side
    1,011,512.30x = 816,603,622,506.71
  5. Step 5: Solve for x
    x = 816,603,622,506.71/1,011,512.30
  6. Step 6: Final answer
    x = 807,309.64

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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.