Home / 727,118.40-1,090,240.20-372,824.40

Finding the Fourth Proportional to 727,118.40, 1,090,240.20 and 372,824.40

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Solution

The fourth proportional to 727,118.40, 1,090,240.20 and 372,824.40 is: 559,012.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,118.40 : 1,090,240.20 = 372,824.40 : x
  2. Step 2: Convert to fraction form
    727,118.40/1,090,240.20 = 372,824.40/x
  3. Step 3: Cross multiply
    727,118.40x = 1,090,240.20 × 372,824.40
  4. Step 4: Simplify right side
    727,118.40x = 406,468,148,420.88
  5. Step 5: Solve for x
    x = 406,468,148,420.88/727,118.40
  6. Step 6: Final answer
    x = 559,012.33

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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.