Home / 831,159.30-1,243,628.55-551,223.30

Finding the Fourth Proportional to 831,159.30, 1,243,628.55 and 551,223.30

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Solution

The fourth proportional to 831,159.30, 1,243,628.55 and 551,223.30 is: 824,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,159.30 : 1,243,628.55 = 551,223.30 : x
  2. Step 2: Convert to fraction form
    831,159.30/1,243,628.55 = 551,223.30/x
  3. Step 3: Cross multiply
    831,159.30x = 1,243,628.55 × 551,223.30
  4. Step 4: Simplify right side
    831,159.30x = 685,517,033,305.22
  5. Step 5: Solve for x
    x = 685,517,033,305.22/831,159.30
  6. Step 6: Final answer
    x = 824,772.14

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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.