Home / 958,634.82-1,438,148.93-390,014.42

Finding the Fourth Proportional to 958,634.82, 1,438,148.93 and 390,014.42

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Solution

The fourth proportional to 958,634.82, 1,438,148.93 and 390,014.42 is: 585,101.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,634.82 : 1,438,148.93 = 390,014.42 : x
  2. Step 2: Convert to fraction form
    958,634.82/1,438,148.93 = 390,014.42/x
  3. Step 3: Cross multiply
    958,634.82x = 1,438,148.93 × 390,014.42
  4. Step 4: Simplify right side
    958,634.82x = 560,898,811,666.75
  5. Step 5: Solve for x
    x = 560,898,811,666.75/958,634.82
  6. Step 6: Final answer
    x = 585,101.65

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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.