Home / 818,261.12-1,129,191.24-455,677.04

Finding the Fourth Proportional to 818,261.12, 1,129,191.24 and 455,677.04

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Solution

The fourth proportional to 818,261.12, 1,129,191.24 and 455,677.04 is: 628,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,261.12 : 1,129,191.24 = 455,677.04 : x
  2. Step 2: Convert to fraction form
    818,261.12/1,129,191.24 = 455,677.04/x
  3. Step 3: Cross multiply
    818,261.12x = 1,129,191.24 × 455,677.04
  4. Step 4: Simplify right side
    818,261.12x = 514,546,521,837.13
  5. Step 5: Solve for x
    x = 514,546,521,837.13/818,261.12
  6. Step 6: Final answer
    x = 628,829.24

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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.