Home / 1,720,378.20-2,577,456.90-1,521,312.60

Finding the Fourth Proportional to 1,720,378.20, 2,577,456.90 and 1,521,312.60

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Solution

The fourth proportional to 1,720,378.20, 2,577,456.90 and 1,521,312.60 is: 2,279,218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,378.20 : 2,577,456.90 = 1,521,312.60 : x
  2. Step 2: Convert to fraction form
    1,720,378.20/2,577,456.90 = 1,521,312.60/x
  3. Step 3: Cross multiply
    1,720,378.20x = 2,577,456.90 × 1,521,312.60
  4. Step 4: Simplify right side
    1,720,378.20x = 3,921,117,657,926.94
  5. Step 5: Solve for x
    x = 3,921,117,657,926.94/1,720,378.20
  6. Step 6: Final answer
    x = 2,279,218.41

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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.