Home / 818,560.52-1,129,647.56-455,984.29

Finding the Fourth Proportional to 818,560.52, 1,129,647.56 and 455,984.29

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Solution

The fourth proportional to 818,560.52, 1,129,647.56 and 455,984.29 is: 629,277.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,560.52 : 1,129,647.56 = 455,984.29 : x
  2. Step 2: Convert to fraction form
    818,560.52/1,129,647.56 = 455,984.29/x
  3. Step 3: Cross multiply
    818,560.52x = 1,129,647.56 × 455,984.29
  4. Step 4: Simplify right side
    818,560.52x = 515,101,535,492.79
  5. Step 5: Solve for x
    x = 515,101,535,492.79/818,560.52
  6. Step 6: Final answer
    x = 629,277.28

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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.