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Finding the Fourth Proportional to 652,407.48, 978,860.16 and 253,328.22

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Solution

The fourth proportional to 652,407.48, 978,860.16 and 253,328.22 is: 380,088.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,407.48 : 978,860.16 = 253,328.22 : x
  2. Step 2: Convert to fraction form
    652,407.48/978,860.16 = 253,328.22/x
  3. Step 3: Cross multiply
    652,407.48x = 978,860.16 × 253,328.22
  4. Step 4: Simplify right side
    652,407.48x = 247,972,901,961.72
  5. Step 5: Solve for x
    x = 247,972,901,961.72/652,407.48
  6. Step 6: Final answer
    x = 380,088.99

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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.