Home / 712,250.96-982,868.98-389,899.32

Finding the Fourth Proportional to 712,250.96, 982,868.98 and 389,899.32

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Solution

The fourth proportional to 712,250.96, 982,868.98 and 389,899.32 is: 538,040.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,250.96 : 982,868.98 = 389,899.32 : x
  2. Step 2: Convert to fraction form
    712,250.96/982,868.98 = 389,899.32/x
  3. Step 3: Cross multiply
    712,250.96x = 982,868.98 × 389,899.32
  4. Step 4: Simplify right side
    712,250.96x = 383,219,946,951.09
  5. Step 5: Solve for x
    x = 383,219,946,951.09/712,250.96
  6. Step 6: Final answer
    x = 538,040.62

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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.