Home / 712,253.34-982,870.66-389,901.08

Finding the Fourth Proportional to 712,253.34, 982,870.66 and 389,901.08

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Solution

The fourth proportional to 712,253.34, 982,870.66 and 389,901.08 is: 538,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,253.34 : 982,870.66 = 389,901.08 : x
  2. Step 2: Convert to fraction form
    712,253.34/982,870.66 = 389,901.08/x
  3. Step 3: Cross multiply
    712,253.34x = 982,870.66 × 389,901.08
  4. Step 4: Simplify right side
    712,253.34x = 383,222,331,834.31
  5. Step 5: Solve for x
    x = 383,222,331,834.31/712,253.34
  6. Step 6: Final answer
    x = 538,042.17

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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.