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Finding the Fourth Proportional to 615,908, 849,955.60 and 333,284

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Solution

The fourth proportional to 615,908, 849,955.60 and 333,284 is: 459,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,908 : 849,955.60 = 333,284 : x
  2. Step 2: Convert to fraction form
    615,908/849,955.60 = 333,284/x
  3. Step 3: Cross multiply
    615,908x = 849,955.60 × 333,284
  4. Step 4: Simplify right side
    615,908x = 283,276,602,190.40
  5. Step 5: Solve for x
    x = 283,276,602,190.40/615,908
  6. Step 6: Final answer
    x = 459,933.31

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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.