Home / 719,942.48-993,531.12-418,136.48

Finding the Fourth Proportional to 719,942.48, 993,531.12 and 418,136.48

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Solution

The fourth proportional to 719,942.48, 993,531.12 and 418,136.48 is: 577,034.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,942.48 : 993,531.12 = 418,136.48 : x
  2. Step 2: Convert to fraction form
    719,942.48/993,531.12 = 418,136.48/x
  3. Step 3: Cross multiply
    719,942.48x = 993,531.12 × 418,136.48
  4. Step 4: Simplify right side
    719,942.48x = 415,431,605,287.26
  5. Step 5: Solve for x
    x = 415,431,605,287.26/719,942.48
  6. Step 6: Final answer
    x = 577,034.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.