Home / 891,611.88-1,337,106.78-392,703.72

Finding the Fourth Proportional to 891,611.88, 1,337,106.78 and 392,703.72

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Solution

The fourth proportional to 891,611.88, 1,337,106.78 and 392,703.72 is: 588,918.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,611.88 : 1,337,106.78 = 392,703.72 : x
  2. Step 2: Convert to fraction form
    891,611.88/1,337,106.78 = 392,703.72/x
  3. Step 3: Cross multiply
    891,611.88x = 1,337,106.78 × 392,703.72
  4. Step 4: Simplify right side
    891,611.88x = 525,086,806,543.22
  5. Step 5: Solve for x
    x = 525,086,806,543.22/891,611.88
  6. Step 6: Final answer
    x = 588,918.58

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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.