Home / 760,412.91-1,049,357.12-420,873.87

Finding the Fourth Proportional to 760,412.91, 1,049,357.12 and 420,873.87

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Solution

The fourth proportional to 760,412.91, 1,049,357.12 and 420,873.87 is: 580,798.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,412.91 : 1,049,357.12 = 420,873.87 : x
  2. Step 2: Convert to fraction form
    760,412.91/1,049,357.12 = 420,873.87/x
  3. Step 3: Cross multiply
    760,412.91x = 1,049,357.12 × 420,873.87
  4. Step 4: Simplify right side
    760,412.91x = 441,646,990,002.09
  5. Step 5: Solve for x
    x = 441,646,990,002.09/760,412.91
  6. Step 6: Final answer
    x = 580,798.91

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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.