Home / 679,620.28-1,019,456.34-346,807.48

Finding the Fourth Proportional to 679,620.28, 1,019,456.34 and 346,807.48

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Solution

The fourth proportional to 679,620.28, 1,019,456.34 and 346,807.48 is: 520,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,620.28 : 1,019,456.34 = 346,807.48 : x
  2. Step 2: Convert to fraction form
    679,620.28/1,019,456.34 = 346,807.48/x
  3. Step 3: Cross multiply
    679,620.28x = 1,019,456.34 × 346,807.48
  4. Step 4: Simplify right side
    679,620.28x = 353,555,084,245.42
  5. Step 5: Solve for x
    x = 353,555,084,245.42/679,620.28
  6. Step 6: Final answer
    x = 520,224.45

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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.