Home / 831,001.80-1,246,502.70-515,814.60

Finding the Fourth Proportional to 831,001.80, 1,246,502.70 and 515,814.60

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Solution

The fourth proportional to 831,001.80, 1,246,502.70 and 515,814.60 is: 773,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,001.80 : 1,246,502.70 = 515,814.60 : x
  2. Step 2: Convert to fraction form
    831,001.80/1,246,502.70 = 515,814.60/x
  3. Step 3: Cross multiply
    831,001.80x = 1,246,502.70 × 515,814.60
  4. Step 4: Simplify right side
    831,001.80x = 642,964,291,599.42
  5. Step 5: Solve for x
    x = 642,964,291,599.42/831,001.80
  6. Step 6: Final answer
    x = 773,721.90

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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.