Home / 905,989.89-1,358,985.12-266,293.74

Finding the Fourth Proportional to 905,989.89, 1,358,985.12 and 266,293.74

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Solution

The fourth proportional to 905,989.89, 1,358,985.12 and 266,293.74 is: 399,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,989.89 : 1,358,985.12 = 266,293.74 : x
  2. Step 2: Convert to fraction form
    905,989.89/1,358,985.12 = 266,293.74/x
  3. Step 3: Cross multiply
    905,989.89x = 1,358,985.12 × 266,293.74
  4. Step 4: Simplify right side
    905,989.89x = 361,889,230,209.15
  5. Step 5: Solve for x
    x = 361,889,230,209.15/905,989.89
  6. Step 6: Final answer
    x = 399,440.69

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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.