Home / 812,361.35-1,121,070.52-468,007.31

Finding the Fourth Proportional to 812,361.35, 1,121,070.52 and 468,007.31

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Solution

The fourth proportional to 812,361.35, 1,121,070.52 and 468,007.31 is: 645,856.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,361.35 : 1,121,070.52 = 468,007.31 : x
  2. Step 2: Convert to fraction form
    812,361.35/1,121,070.52 = 468,007.31/x
  3. Step 3: Cross multiply
    812,361.35x = 1,121,070.52 × 468,007.31
  4. Step 4: Simplify right side
    812,361.35x = 524,669,201,773.19
  5. Step 5: Solve for x
    x = 524,669,201,773.19/812,361.35
  6. Step 6: Final answer
    x = 645,856.92

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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.