Home / 823,899.78-1,235,853.78-291,421.29

Finding the Fourth Proportional to 823,899.78, 1,235,853.78 and 291,421.29

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Solution

The fourth proportional to 823,899.78, 1,235,853.78 and 291,421.29 is: 437,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,899.78 : 1,235,853.78 = 291,421.29 : x
  2. Step 2: Convert to fraction form
    823,899.78/1,235,853.78 = 291,421.29/x
  3. Step 3: Cross multiply
    823,899.78x = 1,235,853.78 × 291,421.29
  4. Step 4: Simplify right side
    823,899.78x = 360,154,102,818.98
  5. Step 5: Solve for x
    x = 360,154,102,818.98/823,899.78
  6. Step 6: Final answer
    x = 437,133.39

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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.