Home / 813,256.80-1,219,781.11-214,264.23

Finding the Fourth Proportional to 813,256.80, 1,219,781.11 and 214,264.23

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Solution

The fourth proportional to 813,256.80, 1,219,781.11 and 214,264.23 is: 321,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,256.80 : 1,219,781.11 = 214,264.23 : x
  2. Step 2: Convert to fraction form
    813,256.80/1,219,781.11 = 214,264.23/x
  3. Step 3: Cross multiply
    813,256.80x = 1,219,781.11 × 214,264.23
  4. Step 4: Simplify right side
    813,256.80x = 261,355,460,302.70
  5. Step 5: Solve for x
    x = 261,355,460,302.70/813,256.80
  6. Step 6: Final answer
    x = 321,368.92

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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.