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Finding the Fourth Proportional to 615,233.16, 849,042 and 357,090.66

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Solution

The fourth proportional to 615,233.16, 849,042 and 357,090.66 is: 492,796.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,233.16 : 849,042 = 357,090.66 : x
  2. Step 2: Convert to fraction form
    615,233.16/849,042 = 357,090.66/x
  3. Step 3: Cross multiply
    615,233.16x = 849,042 × 357,090.66
  4. Step 4: Simplify right side
    615,233.16x = 303,184,968,147.72
  5. Step 5: Solve for x
    x = 303,184,968,147.72/615,233.16
  6. Step 6: Final answer
    x = 492,796.86

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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.