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Finding the Fourth Proportional to 424,838.78, 586,208.91 and 243,517.34

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Solution

The fourth proportional to 424,838.78, 586,208.91 and 243,517.34 is: 336,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,838.78 : 586,208.91 = 243,517.34 : x
  2. Step 2: Convert to fraction form
    424,838.78/586,208.91 = 243,517.34/x
  3. Step 3: Cross multiply
    424,838.78x = 586,208.91 × 243,517.34
  4. Step 4: Simplify right side
    424,838.78x = 142,752,034,447.50
  5. Step 5: Solve for x
    x = 142,752,034,447.50/424,838.78
  6. Step 6: Final answer
    x = 336,014.60

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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.