Home / 1,212,308.80-1,818,069.76-572,513.60

Finding the Fourth Proportional to 1,212,308.80, 1,818,069.76 and 572,513.60

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Solution

The fourth proportional to 1,212,308.80, 1,818,069.76 and 572,513.60 is: 858,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,308.80 : 1,818,069.76 = 572,513.60 : x
  2. Step 2: Convert to fraction form
    1,212,308.80/1,818,069.76 = 572,513.60/x
  3. Step 3: Cross multiply
    1,212,308.80x = 1,818,069.76 × 572,513.60
  4. Step 4: Simplify right side
    1,212,308.80x = 1,040,869,663,348.74
  5. Step 5: Solve for x
    x = 1,040,869,663,348.74/1,212,308.80
  6. Step 6: Final answer
    x = 858,584.60

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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.