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Finding the Fourth Proportional to 554,121.16, 764,690.70 and 299,471.74

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Solution

The fourth proportional to 554,121.16, 764,690.70 and 299,471.74 is: 413,272.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,121.16 : 764,690.70 = 299,471.74 : x
  2. Step 2: Convert to fraction form
    554,121.16/764,690.70 = 299,471.74/x
  3. Step 3: Cross multiply
    554,121.16x = 764,690.70 × 299,471.74
  4. Step 4: Simplify right side
    554,121.16x = 229,003,254,490.82
  5. Step 5: Solve for x
    x = 229,003,254,490.82/554,121.16
  6. Step 6: Final answer
    x = 413,272.89

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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.