Home / 812,151.36-1,219,424.63-453,023.89

Finding the Fourth Proportional to 812,151.36, 1,219,424.63 and 453,023.89

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Solution

The fourth proportional to 812,151.36, 1,219,424.63 and 453,023.89 is: 680,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,151.36 : 1,219,424.63 = 453,023.89 : x
  2. Step 2: Convert to fraction form
    812,151.36/1,219,424.63 = 453,023.89/x
  3. Step 3: Cross multiply
    812,151.36x = 1,219,424.63 × 453,023.89
  4. Step 4: Simplify right side
    812,151.36x = 552,428,484,130.73
  5. Step 5: Solve for x
    x = 552,428,484,130.73/812,151.36
  6. Step 6: Final answer
    x = 680,203.85

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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.