Home / 725,605.20-1,001,292.30-403,304.22

Finding the Fourth Proportional to 725,605.20, 1,001,292.30 and 403,304.22

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Solution

The fourth proportional to 725,605.20, 1,001,292.30 and 403,304.22 is: 556,535.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,605.20 : 1,001,292.30 = 403,304.22 : x
  2. Step 2: Convert to fraction form
    725,605.20/1,001,292.30 = 403,304.22/x
  3. Step 3: Cross multiply
    725,605.20x = 1,001,292.30 × 403,304.22
  4. Step 4: Simplify right side
    725,605.20x = 403,825,410,043.51
  5. Step 5: Solve for x
    x = 403,825,410,043.51/725,605.20
  6. Step 6: Final answer
    x = 556,535.99

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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.