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Finding the Fourth Proportional to 538,670.64, 808,004.64 and 159,620.88

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Solution

The fourth proportional to 538,670.64, 808,004.64 and 159,620.88 is: 239,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,670.64 : 808,004.64 = 159,620.88 : x
  2. Step 2: Convert to fraction form
    538,670.64/808,004.64 = 159,620.88/x
  3. Step 3: Cross multiply
    538,670.64x = 808,004.64 × 159,620.88
  4. Step 4: Simplify right side
    538,670.64x = 128,974,411,680.88
  5. Step 5: Solve for x
    x = 128,974,411,680.88/538,670.64
  6. Step 6: Final answer
    x = 239,430.93

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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.