Home / 671,036.32-925,724.94-398,949.85

Finding the Fourth Proportional to 671,036.32, 925,724.94 and 398,949.85

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Solution

The fourth proportional to 671,036.32, 925,724.94 and 398,949.85 is: 550,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,036.32 : 925,724.94 = 398,949.85 : x
  2. Step 2: Convert to fraction form
    671,036.32/925,724.94 = 398,949.85/x
  3. Step 3: Cross multiply
    671,036.32x = 925,724.94 × 398,949.85
  4. Step 4: Simplify right side
    671,036.32x = 369,317,825,954.26
  5. Step 5: Solve for x
    x = 369,317,825,954.26/671,036.32
  6. Step 6: Final answer
    x = 550,369.35

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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.