Home / 778,222.24-1,073,947.44-420,526.24

Finding the Fourth Proportional to 778,222.24, 1,073,947.44 and 420,526.24

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Solution

The fourth proportional to 778,222.24, 1,073,947.44 and 420,526.24 is: 580,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,222.24 : 1,073,947.44 = 420,526.24 : x
  2. Step 2: Convert to fraction form
    778,222.24/1,073,947.44 = 420,526.24/x
  3. Step 3: Cross multiply
    778,222.24x = 1,073,947.44 × 420,526.24
  4. Step 4: Simplify right side
    778,222.24x = 451,623,078,900.83
  5. Step 5: Solve for x
    x = 451,623,078,900.83/778,222.24
  6. Step 6: Final answer
    x = 580,326.62

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1.5x scale

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.