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Finding the Fourth Proportional to 2,596,977.60, 3,893,623.20 and 998,923.20

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Solution

The fourth proportional to 2,596,977.60, 3,893,623.20 and 998,923.20 is: 1,497,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,596,977.60 : 3,893,623.20 = 998,923.20 : x
  2. Step 2: Convert to fraction form
    2,596,977.60/3,893,623.20 = 998,923.20/x
  3. Step 3: Cross multiply
    2,596,977.60x = 3,893,623.20 × 998,923.20
  4. Step 4: Simplify right side
    2,596,977.60x = 3,889,430,546,538.24
  5. Step 5: Solve for x
    x = 3,889,430,546,538.24/2,596,977.60
  6. Step 6: Final answer
    x = 1,497,675.82

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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.