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Finding the Fourth Proportional to 1,692,272, 2,538,158.64 and 555,154.16

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Solution

The fourth proportional to 1,692,272, 2,538,158.64 and 555,154.16 is: 832,649.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692,272 : 2,538,158.64 = 555,154.16 : x
  2. Step 2: Convert to fraction form
    1,692,272/2,538,158.64 = 555,154.16/x
  3. Step 3: Cross multiply
    1,692,272x = 2,538,158.64 × 555,154.16
  4. Step 4: Simplify right side
    1,692,272x = 1,409,069,327,735.94
  5. Step 5: Solve for x
    x = 1,409,069,327,735.94/1,692,272
  6. Step 6: Final answer
    x = 832,649.44

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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.