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Finding the Fourth Proportional to 615,892.11, 849,888.78 and 340,237.77

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Solution

The fourth proportional to 615,892.11, 849,888.78 and 340,237.77 is: 469,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,892.11 : 849,888.78 = 340,237.77 : x
  2. Step 2: Convert to fraction form
    615,892.11/849,888.78 = 340,237.77/x
  3. Step 3: Cross multiply
    615,892.11x = 849,888.78 × 340,237.77
  4. Step 4: Simplify right side
    615,892.11x = 289,164,263,255.22
  5. Step 5: Solve for x
    x = 289,164,263,255.22/615,892.11
  6. Step 6: Final answer
    x = 469,504.74

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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.