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Finding the Fourth Proportional to 615,480.31, 848,346.02 and 411,456.70

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Solution

The fourth proportional to 615,480.31, 848,346.02 and 411,456.70 is: 567,130.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,480.31 : 848,346.02 = 411,456.70 : x
  2. Step 2: Convert to fraction form
    615,480.31/848,346.02 = 411,456.70/x
  3. Step 3: Cross multiply
    615,480.31x = 848,346.02 × 411,456.70
  4. Step 4: Simplify right side
    615,480.31x = 349,057,654,393.45
  5. Step 5: Solve for x
    x = 349,057,654,393.45/615,480.31
  6. Step 6: Final answer
    x = 567,130.50

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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.