Home / 712,252.34-982,869.28-389,900.08

Finding the Fourth Proportional to 712,252.34, 982,869.28 and 389,900.08

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Solution

The fourth proportional to 712,252.34, 982,869.28 and 389,900.08 is: 538,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,252.34 : 982,869.28 = 389,900.08 : x
  2. Step 2: Convert to fraction form
    712,252.34/982,869.28 = 389,900.08/x
  3. Step 3: Cross multiply
    712,252.34x = 982,869.28 × 389,900.08
  4. Step 4: Simplify right side
    712,252.34x = 383,220,810,901.54
  5. Step 5: Solve for x
    x = 383,220,810,901.54/712,252.34
  6. Step 6: Final answer
    x = 538,040.79

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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.