Home / 813,363.34-1,220,115.48-214,319.74

Finding the Fourth Proportional to 813,363.34, 1,220,115.48 and 214,319.74

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Solution

The fourth proportional to 813,363.34, 1,220,115.48 and 214,319.74 is: 321,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,363.34 : 1,220,115.48 = 214,319.74 : x
  2. Step 2: Convert to fraction form
    813,363.34/1,220,115.48 = 214,319.74/x
  3. Step 3: Cross multiply
    813,363.34x = 1,220,115.48 × 214,319.74
  4. Step 4: Simplify right side
    813,363.34x = 261,494,832,443.58
  5. Step 5: Solve for x
    x = 261,494,832,443.58/813,363.34
  6. Step 6: Final answer
    x = 321,498.18

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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.