Home / 831,010.86-1,246,073.13-431,249.10

Finding the Fourth Proportional to 831,010.86, 1,246,073.13 and 431,249.10

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Solution

The fourth proportional to 831,010.86, 1,246,073.13 and 431,249.10 is: 646,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,010.86 : 1,246,073.13 = 431,249.10 : x
  2. Step 2: Convert to fraction form
    831,010.86/1,246,073.13 = 431,249.10/x
  3. Step 3: Cross multiply
    831,010.86x = 1,246,073.13 × 431,249.10
  4. Step 4: Simplify right side
    831,010.86x = 537,367,915,846.68
  5. Step 5: Solve for x
    x = 537,367,915,846.68/831,010.86
  6. Step 6: Final answer
    x = 646,643.67

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Double scale
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1.5x scale

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.