Home / 935,288.32-1,291,046.81-728,146.28

Finding the Fourth Proportional to 935,288.32, 1,291,046.81 and 728,146.28

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Solution

The fourth proportional to 935,288.32, 1,291,046.81 and 728,146.28 is: 1,005,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,288.32 : 1,291,046.81 = 728,146.28 : x
  2. Step 2: Convert to fraction form
    935,288.32/1,291,046.81 = 728,146.28/x
  3. Step 3: Cross multiply
    935,288.32x = 1,291,046.81 × 728,146.28
  4. Step 4: Simplify right side
    935,288.32x = 940,070,921,911.40
  5. Step 5: Solve for x
    x = 940,070,921,911.40/935,288.32
  6. Step 6: Final answer
    x = 1,005,113.51

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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.