Home / 805,181.50-1,111,150.47-465,671.62

Finding the Fourth Proportional to 805,181.50, 1,111,150.47 and 465,671.62

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Solution

The fourth proportional to 805,181.50, 1,111,150.47 and 465,671.62 is: 642,626.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,181.50 : 1,111,150.47 = 465,671.62 : x
  2. Step 2: Convert to fraction form
    805,181.50/1,111,150.47 = 465,671.62/x
  3. Step 3: Cross multiply
    805,181.50x = 1,111,150.47 × 465,671.62
  4. Step 4: Simplify right side
    805,181.50x = 517,431,239,428.66
  5. Step 5: Solve for x
    x = 517,431,239,428.66/805,181.50
  6. Step 6: Final answer
    x = 642,626.84

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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.