Home / 1,705,234.21-2,352,664.34-1,215,280.90

Finding the Fourth Proportional to 1,705,234.21, 2,352,664.34 and 1,215,280.90

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Solution

The fourth proportional to 1,705,234.21, 2,352,664.34 and 1,215,280.90 is: 1,676,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705,234.21 : 2,352,664.34 = 1,215,280.90 : x
  2. Step 2: Convert to fraction form
    1,705,234.21/2,352,664.34 = 1,215,280.90/x
  3. Step 3: Cross multiply
    1,705,234.21x = 2,352,664.34 × 1,215,280.90
  4. Step 4: Simplify right side
    1,705,234.21x = 2,859,148,037,934.84
  5. Step 5: Solve for x
    x = 2,859,148,037,934.84/1,705,234.21
  6. Step 6: Final answer
    x = 1,676,689.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.