Home / 831,147.30-1,243,610.55-551,211.30

Finding the Fourth Proportional to 831,147.30, 1,243,610.55 and 551,211.30

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Solution

The fourth proportional to 831,147.30, 1,243,610.55 and 551,211.30 is: 824,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,147.30 : 1,243,610.55 = 551,211.30 : x
  2. Step 2: Convert to fraction form
    831,147.30/1,243,610.55 = 551,211.30/x
  3. Step 3: Cross multiply
    831,147.30x = 1,243,610.55 × 551,211.30
  4. Step 4: Simplify right side
    831,147.30x = 685,492,187,959.22
  5. Step 5: Solve for x
    x = 685,492,187,959.22/831,147.30
  6. Step 6: Final answer
    x = 824,754.15

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1.5x scale

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.