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Finding the Fourth Proportional to 615,879.80, 923,627.70 and 242,017.40

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Solution

The fourth proportional to 615,879.80, 923,627.70 and 242,017.40 is: 362,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,879.80 : 923,627.70 = 242,017.40 : x
  2. Step 2: Convert to fraction form
    615,879.80/923,627.70 = 242,017.40/x
  3. Step 3: Cross multiply
    615,879.80x = 923,627.70 × 242,017.40
  4. Step 4: Simplify right side
    615,879.80x = 223,533,974,521.98
  5. Step 5: Solve for x
    x = 223,533,974,521.98/615,879.80
  6. Step 6: Final answer
    x = 362,950.65

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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.