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Finding the Fourth Proportional to 652,369.30, 978,803.04 and 253,290.28

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Solution

The fourth proportional to 652,369.30, 978,803.04 and 253,290.28 is: 380,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,369.30 : 978,803.04 = 253,290.28 : x
  2. Step 2: Convert to fraction form
    652,369.30/978,803.04 = 253,290.28/x
  3. Step 3: Cross multiply
    652,369.30x = 978,803.04 × 253,290.28
  4. Step 4: Simplify right side
    652,369.30x = 247,921,296,066.45
  5. Step 5: Solve for x
    x = 247,921,296,066.45/652,369.30
  6. Step 6: Final answer
    x = 380,032.13

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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.