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Finding the Fourth Proportional to 438,392.25, 604,981.71 and 247,401.54

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Solution

The fourth proportional to 438,392.25, 604,981.71 and 247,401.54 is: 341,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,392.25 : 604,981.71 = 247,401.54 : x
  2. Step 2: Convert to fraction form
    438,392.25/604,981.71 = 247,401.54/x
  3. Step 3: Cross multiply
    438,392.25x = 604,981.71 × 247,401.54
  4. Step 4: Simplify right side
    438,392.25x = 149,673,406,725.83
  5. Step 5: Solve for x
    x = 149,673,406,725.83/438,392.25
  6. Step 6: Final answer
    x = 341,414.35

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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.