Home / 812,933.68-1,121,848.48-445,412.32

Finding the Fourth Proportional to 812,933.68, 1,121,848.48 and 445,412.32

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Solution

The fourth proportional to 812,933.68, 1,121,848.48 and 445,412.32 is: 614,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,933.68 : 1,121,848.48 = 445,412.32 : x
  2. Step 2: Convert to fraction form
    812,933.68/1,121,848.48 = 445,412.32/x
  3. Step 3: Cross multiply
    812,933.68x = 1,121,848.48 × 445,412.32
  4. Step 4: Simplify right side
    812,933.68x = 499,685,134,165.27
  5. Step 5: Solve for x
    x = 499,685,134,165.27/812,933.68
  6. Step 6: Final answer
    x = 614,669.00

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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.