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Finding the Fourth Proportional to 495,437.91, 683,662.58 and 274,681.11

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Solution

The fourth proportional to 495,437.91, 683,662.58 and 274,681.11 is: 379,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,437.91 : 683,662.58 = 274,681.11 : x
  2. Step 2: Convert to fraction form
    495,437.91/683,662.58 = 274,681.11/x
  3. Step 3: Cross multiply
    495,437.91x = 683,662.58 × 274,681.11
  4. Step 4: Simplify right side
    495,437.91x = 187,789,196,339.86
  5. Step 5: Solve for x
    x = 187,789,196,339.86/495,437.91
  6. Step 6: Final answer
    x = 379,036.79

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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.