Home / 690,659.24-1,036,129.80-291,299.27

Finding the Fourth Proportional to 690,659.24, 1,036,129.80 and 291,299.27

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Solution

The fourth proportional to 690,659.24, 1,036,129.80 and 291,299.27 is: 437,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,659.24 : 1,036,129.80 = 291,299.27 : x
  2. Step 2: Convert to fraction form
    690,659.24/1,036,129.80 = 291,299.27/x
  3. Step 3: Cross multiply
    690,659.24x = 1,036,129.80 × 291,299.27
  4. Step 4: Simplify right side
    690,659.24x = 301,823,854,365.25
  5. Step 5: Solve for x
    x = 301,823,854,365.25/690,659.24
  6. Step 6: Final answer
    x = 437,008.35

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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.