Home / 1,620,957.60-2,429,262.82-1,261,562.40

Finding the Fourth Proportional to 1,620,957.60, 2,429,262.82 and 1,261,562.40

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Solution

The fourth proportional to 1,620,957.60, 2,429,262.82 and 1,261,562.40 is: 1,890,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,957.60 : 2,429,262.82 = 1,261,562.40 : x
  2. Step 2: Convert to fraction form
    1,620,957.60/2,429,262.82 = 1,261,562.40/x
  3. Step 3: Cross multiply
    1,620,957.60x = 2,429,262.82 × 1,261,562.40
  4. Step 4: Simplify right side
    1,620,957.60x = 3,064,666,633,429.97
  5. Step 5: Solve for x
    x = 3,064,666,633,429.97/1,620,957.60
  6. Step 6: Final answer
    x = 1,890,651.94

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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.