Home / 738,522.23-1,019,160.69-398,990.48

Finding the Fourth Proportional to 738,522.23, 1,019,160.69 and 398,990.48

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Solution

The fourth proportional to 738,522.23, 1,019,160.69 and 398,990.48 is: 550,606.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,522.23 : 1,019,160.69 = 398,990.48 : x
  2. Step 2: Convert to fraction form
    738,522.23/1,019,160.69 = 398,990.48/x
  3. Step 3: Cross multiply
    738,522.23x = 1,019,160.69 × 398,990.48
  4. Step 4: Simplify right side
    738,522.23x = 406,635,412,900.23
  5. Step 5: Solve for x
    x = 406,635,412,900.23/738,522.23
  6. Step 6: Final answer
    x = 550,606.87

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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.