Home / 772,408.31-1,065,924.78-432,876.56

Finding the Fourth Proportional to 772,408.31, 1,065,924.78 and 432,876.56

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Solution

The fourth proportional to 772,408.31, 1,065,924.78 and 432,876.56 is: 597,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,408.31 : 1,065,924.78 = 432,876.56 : x
  2. Step 2: Convert to fraction form
    772,408.31/1,065,924.78 = 432,876.56/x
  3. Step 3: Cross multiply
    772,408.31x = 1,065,924.78 × 432,876.56
  4. Step 4: Simplify right side
    772,408.31x = 461,413,851,985.16
  5. Step 5: Solve for x
    x = 461,413,851,985.16/772,408.31
  6. Step 6: Final answer
    x = 597,370.39

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1.5x scale

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.