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Finding the Fourth Proportional to 495,398.08, 683,932.74 and 326,124.28

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Solution

The fourth proportional to 495,398.08, 683,932.74 and 326,124.28 is: 450,238.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,398.08 : 683,932.74 = 326,124.28 : x
  2. Step 2: Convert to fraction form
    495,398.08/683,932.74 = 326,124.28/x
  3. Step 3: Cross multiply
    495,398.08x = 683,932.74 × 326,124.28
  4. Step 4: Simplify right side
    495,398.08x = 223,047,072,400.93
  5. Step 5: Solve for x
    x = 223,047,072,400.93/495,398.08
  6. Step 6: Final answer
    x = 450,238.06

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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.