Home / 913,036.38-1,260,393.82-545,643.20

Finding the Fourth Proportional to 913,036.38, 1,260,393.82 and 545,643.20

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Solution

The fourth proportional to 913,036.38, 1,260,393.82 and 545,643.20 is: 753,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,036.38 : 1,260,393.82 = 545,643.20 : x
  2. Step 2: Convert to fraction form
    913,036.38/1,260,393.82 = 545,643.20/x
  3. Step 3: Cross multiply
    913,036.38x = 1,260,393.82 × 545,643.20
  4. Step 4: Simplify right side
    913,036.38x = 687,725,317,205.02
  5. Step 5: Solve for x
    x = 687,725,317,205.02/913,036.38
  6. Step 6: Final answer
    x = 753,228.82

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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.