Home / 1,329,312.80-1,993,969.20-442,848.80

Finding the Fourth Proportional to 1,329,312.80, 1,993,969.20 and 442,848.80

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Solution

The fourth proportional to 1,329,312.80, 1,993,969.20 and 442,848.80 is: 664,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,312.80 : 1,993,969.20 = 442,848.80 : x
  2. Step 2: Convert to fraction form
    1,329,312.80/1,993,969.20 = 442,848.80/x
  3. Step 3: Cross multiply
    1,329,312.80x = 1,993,969.20 × 442,848.80
  4. Step 4: Simplify right side
    1,329,312.80x = 883,026,867,456.96
  5. Step 5: Solve for x
    x = 883,026,867,456.96/1,329,312.80
  6. Step 6: Final answer
    x = 664,273.20

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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.