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Finding the Fourth Proportional to 615,168, 848,983.68 and 346,947.84

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Solution

The fourth proportional to 615,168, 848,983.68 and 346,947.84 is: 478,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,168 : 848,983.68 = 346,947.84 : x
  2. Step 2: Convert to fraction form
    615,168/848,983.68 = 346,947.84/x
  3. Step 3: Cross multiply
    615,168x = 848,983.68 × 346,947.84
  4. Step 4: Simplify right side
    615,168x = 294,553,053,971.25
  5. Step 5: Solve for x
    x = 294,553,053,971.25/615,168
  6. Step 6: Final answer
    x = 478,817.26

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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.