Home / 725,456.40-1,087,795.80-304,256.40

Finding the Fourth Proportional to 725,456.40, 1,087,795.80 and 304,256.40

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Solution

The fourth proportional to 725,456.40, 1,087,795.80 and 304,256.40 is: 456,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,456.40 : 1,087,795.80 = 304,256.40 : x
  2. Step 2: Convert to fraction form
    725,456.40/1,087,795.80 = 304,256.40/x
  3. Step 3: Cross multiply
    725,456.40x = 1,087,795.80 × 304,256.40
  4. Step 4: Simplify right side
    725,456.40x = 330,968,834,043.12
  5. Step 5: Solve for x
    x = 330,968,834,043.12/725,456.40
  6. Step 6: Final answer
    x = 456,221.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.