Home / 903,958.12-1,247,267.34-521,763.47

Finding the Fourth Proportional to 903,958.12, 1,247,267.34 and 521,763.47

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Solution

The fourth proportional to 903,958.12, 1,247,267.34 and 521,763.47 is: 719,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,958.12 : 1,247,267.34 = 521,763.47 : x
  2. Step 2: Convert to fraction form
    903,958.12/1,247,267.34 = 521,763.47/x
  3. Step 3: Cross multiply
    903,958.12x = 1,247,267.34 × 521,763.47
  4. Step 4: Simplify right side
    903,958.12x = 650,778,532,727.25
  5. Step 5: Solve for x
    x = 650,778,532,727.25/903,958.12
  6. Step 6: Final answer
    x = 719,921.11

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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.