Home / 1,047,494.82-1,445,502.14-640,278.48

Finding the Fourth Proportional to 1,047,494.82, 1,445,502.14 and 640,278.48

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Solution

The fourth proportional to 1,047,494.82, 1,445,502.14 and 640,278.48 is: 883,559.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,494.82 : 1,445,502.14 = 640,278.48 : x
  2. Step 2: Convert to fraction form
    1,047,494.82/1,445,502.14 = 640,278.48/x
  3. Step 3: Cross multiply
    1,047,494.82x = 1,445,502.14 × 640,278.48
  4. Step 4: Simplify right side
    1,047,494.82x = 925,523,913,035.95
  5. Step 5: Solve for x
    x = 925,523,913,035.95/1,047,494.82
  6. Step 6: Final answer
    x = 883,559.42

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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.