Home / 1,235,914.80-1,853,872.20-438,097.20

Finding the Fourth Proportional to 1,235,914.80, 1,853,872.20 and 438,097.20

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Solution

The fourth proportional to 1,235,914.80, 1,853,872.20 and 438,097.20 is: 657,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,914.80 : 1,853,872.20 = 438,097.20 : x
  2. Step 2: Convert to fraction form
    1,235,914.80/1,853,872.20 = 438,097.20/x
  3. Step 3: Cross multiply
    1,235,914.80x = 1,853,872.20 × 438,097.20
  4. Step 4: Simplify right side
    1,235,914.80x = 812,176,219,977.84
  5. Step 5: Solve for x
    x = 812,176,219,977.84/1,235,914.80
  6. Step 6: Final answer
    x = 657,145.80

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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.