Home / 712,267.14-982,928.79-389,998.02

Finding the Fourth Proportional to 712,267.14, 982,928.79 and 389,998.02

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Solution

The fourth proportional to 712,267.14, 982,928.79 and 389,998.02 is: 538,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,267.14 : 982,928.79 = 389,998.02 : x
  2. Step 2: Convert to fraction form
    712,267.14/982,928.79 = 389,998.02/x
  3. Step 3: Cross multiply
    712,267.14x = 982,928.79 × 389,998.02
  4. Step 4: Simplify right side
    712,267.14x = 383,340,281,901.00
  5. Step 5: Solve for x
    x = 383,340,281,901.00/712,267.14
  6. Step 6: Final answer
    x = 538,197.34

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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.