Home / 831,139.86-1,246,780.52-262,368.80

Finding the Fourth Proportional to 831,139.86, 1,246,780.52 and 262,368.80

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Solution

The fourth proportional to 831,139.86, 1,246,780.52 and 262,368.80 is: 393,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,139.86 : 1,246,780.52 = 262,368.80 : x
  2. Step 2: Convert to fraction form
    831,139.86/1,246,780.52 = 262,368.80/x
  3. Step 3: Cross multiply
    831,139.86x = 1,246,780.52 × 262,368.80
  4. Step 4: Simplify right side
    831,139.86x = 327,116,308,895.78
  5. Step 5: Solve for x
    x = 327,116,308,895.78/831,139.86
  6. Step 6: Final answer
    x = 393,575.53

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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.