Home / 696,004.28-960,553.32-390,132.68

Finding the Fourth Proportional to 696,004.28, 960,553.32 and 390,132.68

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Solution

The fourth proportional to 696,004.28, 960,553.32 and 390,132.68 is: 538,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,004.28 : 960,553.32 = 390,132.68 : x
  2. Step 2: Convert to fraction form
    696,004.28/960,553.32 = 390,132.68/x
  3. Step 3: Cross multiply
    696,004.28x = 960,553.32 × 390,132.68
  4. Step 4: Simplify right side
    696,004.28x = 374,743,241,014.50
  5. Step 5: Solve for x
    x = 374,743,241,014.50/696,004.28
  6. Step 6: Final answer
    x = 538,420.89

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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.