Home / 831,670.67-1,247,317.77-381,959.21

Finding the Fourth Proportional to 831,670.67, 1,247,317.77 and 381,959.21

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Solution

The fourth proportional to 831,670.67, 1,247,317.77 and 381,959.21 is: 572,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,670.67 : 1,247,317.77 = 381,959.21 : x
  2. Step 2: Convert to fraction form
    831,670.67/1,247,317.77 = 381,959.21/x
  3. Step 3: Cross multiply
    831,670.67x = 1,247,317.77 × 381,959.21
  4. Step 4: Simplify right side
    831,670.67x = 476,424,510,048.16
  5. Step 5: Solve for x
    x = 476,424,510,048.16/831,670.67
  6. Step 6: Final answer
    x = 572,852.36

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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.