Home / 811,856.96-1,216,852.32-545,295.68

Finding the Fourth Proportional to 811,856.96, 1,216,852.32 and 545,295.68

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Solution

The fourth proportional to 811,856.96, 1,216,852.32 and 545,295.68 is: 817,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,856.96 : 1,216,852.32 = 545,295.68 : x
  2. Step 2: Convert to fraction form
    811,856.96/1,216,852.32 = 545,295.68/x
  3. Step 3: Cross multiply
    811,856.96x = 1,216,852.32 × 545,295.68
  4. Step 4: Simplify right side
    811,856.96x = 663,544,313,293.98
  5. Step 5: Solve for x
    x = 663,544,313,293.98/811,856.96
  6. Step 6: Final answer
    x = 817,316.78

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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.