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Finding the Fourth Proportional to 615,911.18, 849,469.48 and 374,186.93

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Solution

The fourth proportional to 615,911.18, 849,469.48 and 374,186.93 is: 516,081.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,911.18 : 849,469.48 = 374,186.93 : x
  2. Step 2: Convert to fraction form
    615,911.18/849,469.48 = 374,186.93/x
  3. Step 3: Cross multiply
    615,911.18x = 849,469.48 × 374,186.93
  4. Step 4: Simplify right side
    615,911.18x = 317,860,371,667.08
  5. Step 5: Solve for x
    x = 317,860,371,667.08/615,911.18
  6. Step 6: Final answer
    x = 516,081.51

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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.