Home / 1,355,474.97-2,031,890.54-645,312.33

Finding the Fourth Proportional to 1,355,474.97, 2,031,890.54 and 645,312.33

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Solution

The fourth proportional to 1,355,474.97, 2,031,890.54 and 645,312.33 is: 967,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,474.97 : 2,031,890.54 = 645,312.33 : x
  2. Step 2: Convert to fraction form
    1,355,474.97/2,031,890.54 = 645,312.33/x
  3. Step 3: Cross multiply
    1,355,474.97x = 2,031,890.54 × 645,312.33
  4. Step 4: Simplify right side
    1,355,474.97x = 1,311,204,015,445.80
  5. Step 5: Solve for x
    x = 1,311,204,015,445.80/1,355,474.97
  6. Step 6: Final answer
    x = 967,339.16

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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.