Home / 1,318,456.80-1,977,685.20-371,815.20

Finding the Fourth Proportional to 1,318,456.80, 1,977,685.20 and 371,815.20

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Solution

The fourth proportional to 1,318,456.80, 1,977,685.20 and 371,815.20 is: 557,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,456.80 : 1,977,685.20 = 371,815.20 : x
  2. Step 2: Convert to fraction form
    1,318,456.80/1,977,685.20 = 371,815.20/x
  3. Step 3: Cross multiply
    1,318,456.80x = 1,977,685.20 × 371,815.20
  4. Step 4: Simplify right side
    1,318,456.80x = 735,333,418,175.04
  5. Step 5: Solve for x
    x = 735,333,418,175.04/1,318,456.80
  6. Step 6: Final answer
    x = 557,722.80

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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.