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Finding the Fourth Proportional to 615,667.84, 849,638.57 and 343,725.32

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Solution

The fourth proportional to 615,667.84, 849,638.57 and 343,725.32 is: 474,350.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,667.84 : 849,638.57 = 343,725.32 : x
  2. Step 2: Convert to fraction form
    615,667.84/849,638.57 = 343,725.32/x
  3. Step 3: Cross multiply
    615,667.84x = 849,638.57 × 343,725.32
  4. Step 4: Simplify right side
    615,667.84x = 292,042,289,763.06
  5. Step 5: Solve for x
    x = 292,042,289,763.06/615,667.84
  6. Step 6: Final answer
    x = 474,350.41

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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.