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Finding the Fourth Proportional to 602,443.08, 903,402.12 and 203,009.40

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Solution

The fourth proportional to 602,443.08, 903,402.12 and 203,009.40 is: 304,425.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,443.08 : 903,402.12 = 203,009.40 : x
  2. Step 2: Convert to fraction form
    602,443.08/903,402.12 = 203,009.40/x
  3. Step 3: Cross multiply
    602,443.08x = 903,402.12 × 203,009.40
  4. Step 4: Simplify right side
    602,443.08x = 183,399,122,339.93
  5. Step 5: Solve for x
    x = 183,399,122,339.93/602,443.08
  6. Step 6: Final answer
    x = 304,425.64

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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.