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Finding the Fourth Proportional to 653,777.69, 902,132.51 and 378,182.88

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Solution

The fourth proportional to 653,777.69, 902,132.51 and 378,182.88 is: 521,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,777.69 : 902,132.51 = 378,182.88 : x
  2. Step 2: Convert to fraction form
    653,777.69/902,132.51 = 378,182.88/x
  3. Step 3: Cross multiply
    653,777.69x = 902,132.51 × 378,182.88
  4. Step 4: Simplify right side
    653,777.69x = 341,171,068,882.51
  5. Step 5: Solve for x
    x = 341,171,068,882.51/653,777.69
  6. Step 6: Final answer
    x = 521,845.69

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1.5x scale

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.