Home / 1,993,813.56-2,991,191.76-645,973.98

Finding the Fourth Proportional to 1,993,813.56, 2,991,191.76 and 645,973.98

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Solution

The fourth proportional to 1,993,813.56, 2,991,191.76 and 645,973.98 is: 969,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,813.56 : 2,991,191.76 = 645,973.98 : x
  2. Step 2: Convert to fraction form
    1,993,813.56/2,991,191.76 = 645,973.98/x
  3. Step 3: Cross multiply
    1,993,813.56x = 2,991,191.76 × 645,973.98
  4. Step 4: Simplify right side
    1,993,813.56x = 1,932,232,046,150.40
  5. Step 5: Solve for x
    x = 1,932,232,046,150.40/1,993,813.56
  6. Step 6: Final answer
    x = 969,113.70

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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.