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Finding the Fourth Proportional to 578,678.34, 798,447.06 and 349,273.38

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Solution

The fourth proportional to 578,678.34, 798,447.06 and 349,273.38 is: 481,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,678.34 : 798,447.06 = 349,273.38 : x
  2. Step 2: Convert to fraction form
    578,678.34/798,447.06 = 349,273.38/x
  3. Step 3: Cross multiply
    578,678.34x = 798,447.06 × 349,273.38
  4. Step 4: Simplify right side
    578,678.34x = 278,876,303,397.26
  5. Step 5: Solve for x
    x = 278,876,303,397.26/578,678.34
  6. Step 6: Final answer
    x = 481,919.37

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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.