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Finding the Fourth Proportional to 1,188,712, 1,640,451.36 and 652,168

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Solution

The fourth proportional to 1,188,712, 1,640,451.36 and 652,168 is: 900,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,712 : 1,640,451.36 = 652,168 : x
  2. Step 2: Convert to fraction form
    1,188,712/1,640,451.36 = 652,168/x
  3. Step 3: Cross multiply
    1,188,712x = 1,640,451.36 × 652,168
  4. Step 4: Simplify right side
    1,188,712x = 1,069,849,882,548.48
  5. Step 5: Solve for x
    x = 1,069,849,882,548.48/1,188,712
  6. Step 6: Final answer
    x = 900,007.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.