Home / 726,901.98-1,003,102.40-404,603.80

Finding the Fourth Proportional to 726,901.98, 1,003,102.40 and 404,603.80

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Solution

The fourth proportional to 726,901.98, 1,003,102.40 and 404,603.80 is: 558,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,901.98 : 1,003,102.40 = 404,603.80 : x
  2. Step 2: Convert to fraction form
    726,901.98/1,003,102.40 = 404,603.80/x
  3. Step 3: Cross multiply
    726,901.98x = 1,003,102.40 × 404,603.80
  4. Step 4: Simplify right side
    726,901.98x = 405,859,042,829.12
  5. Step 5: Solve for x
    x = 405,859,042,829.12/726,901.98
  6. Step 6: Final answer
    x = 558,340.81

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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.