Home / 659,176.20-909,670.16-387,255.42

Finding the Fourth Proportional to 659,176.20, 909,670.16 and 387,255.42

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Solution

The fourth proportional to 659,176.20, 909,670.16 and 387,255.42 is: 534,416.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,176.20 : 909,670.16 = 387,255.42 : x
  2. Step 2: Convert to fraction form
    659,176.20/909,670.16 = 387,255.42/x
  3. Step 3: Cross multiply
    659,176.20x = 909,670.16 × 387,255.42
  4. Step 4: Simplify right side
    659,176.20x = 352,274,697,935.99
  5. Step 5: Solve for x
    x = 352,274,697,935.99/659,176.20
  6. Step 6: Final answer
    x = 534,416.59

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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.