Home / 1,318,830.30-1,977,968.63-371,979.59

Finding the Fourth Proportional to 1,318,830.30, 1,977,968.63 and 371,979.59

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Solution

The fourth proportional to 1,318,830.30, 1,977,968.63 and 371,979.59 is: 557,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,830.30 : 1,977,968.63 = 371,979.59 : x
  2. Step 2: Convert to fraction form
    1,318,830.30/1,977,968.63 = 371,979.59/x
  3. Step 3: Cross multiply
    1,318,830.30x = 1,977,968.63 × 371,979.59
  4. Step 4: Simplify right side
    1,318,830.30x = 735,763,948,270.52
  5. Step 5: Solve for x
    x = 735,763,948,270.52/1,318,830.30
  6. Step 6: Final answer
    x = 557,891.30

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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.