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Finding the Fourth Proportional to 615,906.19, 849,974.76 and 354,261.01

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Solution

The fourth proportional to 615,906.19, 849,974.76 and 354,261.01 is: 488,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,906.19 : 849,974.76 = 354,261.01 : x
  2. Step 2: Convert to fraction form
    615,906.19/849,974.76 = 354,261.01/x
  3. Step 3: Cross multiply
    615,906.19x = 849,974.76 × 354,261.01
  4. Step 4: Simplify right side
    615,906.19x = 301,112,916,952.11
  5. Step 5: Solve for x
    x = 301,112,916,952.11/615,906.19
  6. Step 6: Final answer
    x = 488,894.12

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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.