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Finding the Fourth Proportional to 615,028.55, 922,667.36 and 260,042.00

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Solution

The fourth proportional to 615,028.55, 922,667.36 and 260,042.00 is: 390,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,028.55 : 922,667.36 = 260,042.00 : x
  2. Step 2: Convert to fraction form
    615,028.55/922,667.36 = 260,042.00/x
  3. Step 3: Cross multiply
    615,028.55x = 922,667.36 × 260,042.00
  4. Step 4: Simplify right side
    615,028.55x = 239,932,259,715.57
  5. Step 5: Solve for x
    x = 239,932,259,715.57/615,028.55
  6. Step 6: Final answer
    x = 390,115.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.