Home / 831,169.30-1,243,643.55-551,233.30

Finding the Fourth Proportional to 831,169.30, 1,243,643.55 and 551,233.30

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Solution

The fourth proportional to 831,169.30, 1,243,643.55 and 551,233.30 is: 824,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,169.30 : 1,243,643.55 = 551,233.30 : x
  2. Step 2: Convert to fraction form
    831,169.30/1,243,643.55 = 551,233.30/x
  3. Step 3: Cross multiply
    831,169.30x = 1,243,643.55 × 551,233.30
  4. Step 4: Simplify right side
    831,169.30x = 685,537,738,090.22
  5. Step 5: Solve for x
    x = 685,537,738,090.22/831,169.30
  6. Step 6: Final answer
    x = 824,787.13

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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.