Home / 760,218.76-1,049,111.22-420,718.60

Finding the Fourth Proportional to 760,218.76, 1,049,111.22 and 420,718.60

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Solution

The fourth proportional to 760,218.76, 1,049,111.22 and 420,718.60 is: 580,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,218.76 : 1,049,111.22 = 420,718.60 : x
  2. Step 2: Convert to fraction form
    760,218.76/1,049,111.22 = 420,718.60/x
  3. Step 3: Cross multiply
    760,218.76x = 1,049,111.22 × 420,718.60
  4. Step 4: Simplify right side
    760,218.76x = 441,380,603,722.69
  5. Step 5: Solve for x
    x = 441,380,603,722.69/760,218.76
  6. Step 6: Final answer
    x = 580,596.83

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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.