Home / 1,008,278.42-1,391,407.74-549,398.43

Finding the Fourth Proportional to 1,008,278.42, 1,391,407.74 and 549,398.43

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Solution

The fourth proportional to 1,008,278.42, 1,391,407.74 and 549,398.43 is: 758,160.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,278.42 : 1,391,407.74 = 549,398.43 : x
  2. Step 2: Convert to fraction form
    1,008,278.42/1,391,407.74 = 549,398.43/x
  3. Step 3: Cross multiply
    1,008,278.42x = 1,391,407.74 × 549,398.43
  4. Step 4: Simplify right side
    1,008,278.42x = 764,437,227,845.85
  5. Step 5: Solve for x
    x = 764,437,227,845.85/1,008,278.42
  6. Step 6: Final answer
    x = 758,160.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.