Home / 922,018.72-1,383,028.32-290,981.92

Finding the Fourth Proportional to 922,018.72, 1,383,028.32 and 290,981.92

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Solution

The fourth proportional to 922,018.72, 1,383,028.32 and 290,981.92 is: 436,472.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,018.72 : 1,383,028.32 = 290,981.92 : x
  2. Step 2: Convert to fraction form
    922,018.72/1,383,028.32 = 290,981.92/x
  3. Step 3: Cross multiply
    922,018.72x = 1,383,028.32 × 290,981.92
  4. Step 4: Simplify right side
    922,018.72x = 402,436,235,967.97
  5. Step 5: Solve for x
    x = 402,436,235,967.97/922,018.72
  6. Step 6: Final answer
    x = 436,472.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.