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Finding the Fourth Proportional to 1,433,352.62, 1,977,977.03 and 788,712.54

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Solution

The fourth proportional to 1,433,352.62, 1,977,977.03 and 788,712.54 is: 1,088,396.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,352.62 : 1,977,977.03 = 788,712.54 : x
  2. Step 2: Convert to fraction form
    1,433,352.62/1,977,977.03 = 788,712.54/x
  3. Step 3: Cross multiply
    1,433,352.62x = 1,977,977.03 × 788,712.54
  4. Step 4: Simplify right side
    1,433,352.62x = 1,560,055,287,392.96
  5. Step 5: Solve for x
    x = 1,560,055,287,392.96/1,433,352.62
  6. Step 6: Final answer
    x = 1,088,396.02

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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.