Home / 818,546.34-1,129,444.05-455,961.18

Finding the Fourth Proportional to 818,546.34, 1,129,444.05 and 455,961.18

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Solution

The fourth proportional to 818,546.34, 1,129,444.05 and 455,961.18 is: 629,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,546.34 : 1,129,444.05 = 455,961.18 : x
  2. Step 2: Convert to fraction form
    818,546.34/1,129,444.05 = 455,961.18/x
  3. Step 3: Cross multiply
    818,546.34x = 1,129,444.05 × 455,961.18
  4. Step 4: Simplify right side
    818,546.34x = 514,982,641,781.98
  5. Step 5: Solve for x
    x = 514,982,641,781.98/818,546.34
  6. Step 6: Final answer
    x = 629,142.93

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1.5x scale

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.