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Finding the Fourth Proportional to 615,734.66, 849,706.00 and 343,807.34

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Solution

The fourth proportional to 615,734.66, 849,706.00 and 343,807.34 is: 474,449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,734.66 : 849,706.00 = 343,807.34 : x
  2. Step 2: Convert to fraction form
    615,734.66/849,706.00 = 343,807.34/x
  3. Step 3: Cross multiply
    615,734.66x = 849,706.00 × 343,807.34
  4. Step 4: Simplify right side
    615,734.66x = 292,135,154,533.99
  5. Step 5: Solve for x
    x = 292,135,154,533.99/615,734.66
  6. Step 6: Final answer
    x = 474,449.75

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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.