Home / 426,896.19-589,139.43-245,635.65

Finding the Fourth Proportional to 426,896.19, 589,139.43 and 245,635.65

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Solution

The fourth proportional to 426,896.19, 589,139.43 and 245,635.65 is: 338,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,896.19 : 589,139.43 = 245,635.65 : x
  2. Step 2: Convert to fraction form
    426,896.19/589,139.43 = 245,635.65/x
  3. Step 3: Cross multiply
    426,896.19x = 589,139.43 × 245,635.65
  4. Step 4: Simplify right side
    426,896.19x = 144,713,646,828.68
  5. Step 5: Solve for x
    x = 144,713,646,828.68/426,896.19
  6. Step 6: Final answer
    x = 338,990.25

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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.