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Finding the Fourth Proportional to 615,863.80, 923,603.70 and 242,001.40

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Solution

The fourth proportional to 615,863.80, 923,603.70 and 242,001.40 is: 362,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,863.80 : 923,603.70 = 242,001.40 : x
  2. Step 2: Convert to fraction form
    615,863.80/923,603.70 = 242,001.40/x
  3. Step 3: Cross multiply
    615,863.80x = 923,603.70 × 242,001.40
  4. Step 4: Simplify right side
    615,863.80x = 223,513,388,445.18
  5. Step 5: Solve for x
    x = 223,513,388,445.18/615,863.80
  6. Step 6: Final answer
    x = 362,926.65

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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.