Home / 712,266.64-982,928.10-389,997.52

Finding the Fourth Proportional to 712,266.64, 982,928.10 and 389,997.52

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Solution

The fourth proportional to 712,266.64, 982,928.10 and 389,997.52 is: 538,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,266.64 : 982,928.10 = 389,997.52 : x
  2. Step 2: Convert to fraction form
    712,266.64/982,928.10 = 389,997.52/x
  3. Step 3: Cross multiply
    712,266.64x = 982,928.10 × 389,997.52
  4. Step 4: Simplify right side
    712,266.64x = 383,339,521,338.31
  5. Step 5: Solve for x
    x = 383,339,521,338.31/712,266.64
  6. Step 6: Final answer
    x = 538,196.65

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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.