Home / 818,132.35-1,129,011.88-450,602.43

Finding the Fourth Proportional to 818,132.35, 1,129,011.88 and 450,602.43

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Solution

The fourth proportional to 818,132.35, 1,129,011.88 and 450,602.43 is: 621,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,132.35 : 1,129,011.88 = 450,602.43 : x
  2. Step 2: Convert to fraction form
    818,132.35/1,129,011.88 = 450,602.43/x
  3. Step 3: Cross multiply
    818,132.35x = 1,129,011.88 × 450,602.43
  4. Step 4: Simplify right side
    818,132.35x = 508,735,500,007.12
  5. Step 5: Solve for x
    x = 508,735,500,007.12/818,132.35
  6. Step 6: Final answer
    x = 621,825.43

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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.