Home / 492,801.14-679,937.05-288,742.42

Finding the Fourth Proportional to 492,801.14, 679,937.05 and 288,742.42

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Solution

The fourth proportional to 492,801.14, 679,937.05 and 288,742.42 is: 398,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,801.14 : 679,937.05 = 288,742.42 : x
  2. Step 2: Convert to fraction form
    492,801.14/679,937.05 = 288,742.42/x
  3. Step 3: Cross multiply
    492,801.14x = 679,937.05 × 288,742.42
  4. Step 4: Simplify right side
    492,801.14x = 196,326,665,864.98
  5. Step 5: Solve for x
    x = 196,326,665,864.98/492,801.14
  6. Step 6: Final answer
    x = 398,389.23

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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.