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Finding the Fourth Proportional to 615,260.40, 922,890.60 and 559,163.85

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Solution

The fourth proportional to 615,260.40, 922,890.60 and 559,163.85 is: 838,745.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,260.40 : 922,890.60 = 559,163.85 : x
  2. Step 2: Convert to fraction form
    615,260.40/922,890.60 = 559,163.85/x
  3. Step 3: Cross multiply
    615,260.40x = 922,890.60 × 559,163.85
  4. Step 4: Simplify right side
    615,260.40x = 516,047,061,024.81
  5. Step 5: Solve for x
    x = 516,047,061,024.81/615,260.40
  6. Step 6: Final answer
    x = 838,745.78

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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.