Home / 725,913.40-1,087,557.90-620,937.40

Finding the Fourth Proportional to 725,913.40, 1,087,557.90 and 620,937.40

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Solution

The fourth proportional to 725,913.40, 1,087,557.90 and 620,937.40 is: 930,283.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,913.40 : 1,087,557.90 = 620,937.40 : x
  2. Step 2: Convert to fraction form
    725,913.40/1,087,557.90 = 620,937.40/x
  3. Step 3: Cross multiply
    725,913.40x = 1,087,557.90 × 620,937.40
  4. Step 4: Simplify right side
    725,913.40x = 675,305,374,775.46
  5. Step 5: Solve for x
    x = 675,305,374,775.46/725,913.40
  6. Step 6: Final answer
    x = 930,283.66

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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.