Home / 1,115,000.02-1,538,569.38-656,013.61

Finding the Fourth Proportional to 1,115,000.02, 1,538,569.38 and 656,013.61

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Solution

The fourth proportional to 1,115,000.02, 1,538,569.38 and 656,013.61 is: 905,221.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,000.02 : 1,538,569.38 = 656,013.61 : x
  2. Step 2: Convert to fraction form
    1,115,000.02/1,538,569.38 = 656,013.61/x
  3. Step 3: Cross multiply
    1,115,000.02x = 1,538,569.38 × 656,013.61
  4. Step 4: Simplify right side
    1,115,000.02x = 1,009,322,453,209.26
  5. Step 5: Solve for x
    x = 1,009,322,453,209.26/1,115,000.02
  6. Step 6: Final answer
    x = 905,221.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.