Home / 726,643.20-1,088,854.40-305,688.32

Finding the Fourth Proportional to 726,643.20, 1,088,854.40 and 305,688.32

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Solution

The fourth proportional to 726,643.20, 1,088,854.40 and 305,688.32 is: 458,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,643.20 : 1,088,854.40 = 305,688.32 : x
  2. Step 2: Convert to fraction form
    726,643.20/1,088,854.40 = 305,688.32/x
  3. Step 3: Cross multiply
    726,643.20x = 1,088,854.40 × 305,688.32
  4. Step 4: Simplify right side
    726,643.20x = 332,850,072,260.61
  5. Step 5: Solve for x
    x = 332,850,072,260.61/726,643.20
  6. Step 6: Final answer
    x = 458,065.35

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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.