Home / 1,915,658.78-2,872,655.33-549,131.54

Finding the Fourth Proportional to 1,915,658.78, 2,872,655.33 and 549,131.54

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Solution

The fourth proportional to 1,915,658.78, 2,872,655.33 and 549,131.54 is: 823,458.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,658.78 : 2,872,655.33 = 549,131.54 : x
  2. Step 2: Convert to fraction form
    1,915,658.78/2,872,655.33 = 549,131.54/x
  3. Step 3: Cross multiply
    1,915,658.78x = 2,872,655.33 × 549,131.54
  4. Step 4: Simplify right side
    1,915,658.78x = 1,577,465,628,143.17
  5. Step 5: Solve for x
    x = 1,577,465,628,143.17/1,915,658.78
  6. Step 6: Final answer
    x = 823,458.57

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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.