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Finding the Fourth Proportional to 402,370.78, 605,963.34 and 366,499.12

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Solution

The fourth proportional to 402,370.78, 605,963.34 and 366,499.12 is: 551,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,370.78 : 605,963.34 = 366,499.12 : x
  2. Step 2: Convert to fraction form
    402,370.78/605,963.34 = 366,499.12/x
  3. Step 3: Cross multiply
    402,370.78x = 605,963.34 × 366,499.12
  4. Step 4: Simplify right side
    402,370.78x = 222,085,030,862.26
  5. Step 5: Solve for x
    x = 222,085,030,862.26/402,370.78
  6. Step 6: Final answer
    x = 551,941.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.