Home / 726,702.90-1,002,836.48-404,409.98

Finding the Fourth Proportional to 726,702.90, 1,002,836.48 and 404,409.98

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Solution

The fourth proportional to 726,702.90, 1,002,836.48 and 404,409.98 is: 558,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,702.90 : 1,002,836.48 = 404,409.98 : x
  2. Step 2: Convert to fraction form
    726,702.90/1,002,836.48 = 404,409.98/x
  3. Step 3: Cross multiply
    726,702.90x = 1,002,836.48 × 404,409.98
  4. Step 4: Simplify right side
    726,702.90x = 405,557,073,783.84
  5. Step 5: Solve for x
    x = 405,557,073,783.84/726,702.90
  6. Step 6: Final answer
    x = 558,078.24

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1.5x scale

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.