Home / 928,938.82-1,282,037.97-521,080.42

Finding the Fourth Proportional to 928,938.82, 1,282,037.97 and 521,080.42

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Solution

The fourth proportional to 928,938.82, 1,282,037.97 and 521,080.42 is: 719,148.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,938.82 : 1,282,037.97 = 521,080.42 : x
  2. Step 2: Convert to fraction form
    928,938.82/1,282,037.97 = 521,080.42/x
  3. Step 3: Cross multiply
    928,938.82x = 1,282,037.97 × 521,080.42
  4. Step 4: Simplify right side
    928,938.82x = 668,044,883,863.55
  5. Step 5: Solve for x
    x = 668,044,883,863.55/928,938.82
  6. Step 6: Final answer
    x = 719,148.42

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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.