Home / 693,427.80-1,040,323.95-220,112.40

Finding the Fourth Proportional to 693,427.80, 1,040,323.95 and 220,112.40

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Solution

The fourth proportional to 693,427.80, 1,040,323.95 and 220,112.40 is: 330,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,427.80 : 1,040,323.95 = 220,112.40 : x
  2. Step 2: Convert to fraction form
    693,427.80/1,040,323.95 = 220,112.40/x
  3. Step 3: Cross multiply
    693,427.80x = 1,040,323.95 × 220,112.40
  4. Step 4: Simplify right side
    693,427.80x = 228,988,201,411.98
  5. Step 5: Solve for x
    x = 228,988,201,411.98/693,427.80
  6. Step 6: Final answer
    x = 330,226.45

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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.