Home / 1,781,625.40-2,672,438.10-1,678,982.20

Finding the Fourth Proportional to 1,781,625.40, 2,672,438.10 and 1,678,982.20

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Solution

The fourth proportional to 1,781,625.40, 2,672,438.10 and 1,678,982.20 is: 2,518,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,625.40 : 2,672,438.10 = 1,678,982.20 : x
  2. Step 2: Convert to fraction form
    1,781,625.40/2,672,438.10 = 1,678,982.20/x
  3. Step 3: Cross multiply
    1,781,625.40x = 2,672,438.10 × 1,678,982.20
  4. Step 4: Simplify right side
    1,781,625.40x = 4,486,976,000,501.82
  5. Step 5: Solve for x
    x = 4,486,976,000,501.82/1,781,625.40
  6. Step 6: Final answer
    x = 2,518,473.30

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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.