Home / 917,856.29-1,376,631.74-278,007.90

Finding the Fourth Proportional to 917,856.29, 1,376,631.74 and 278,007.90

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Solution

The fourth proportional to 917,856.29, 1,376,631.74 and 278,007.90 is: 416,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,856.29 : 1,376,631.74 = 278,007.90 : x
  2. Step 2: Convert to fraction form
    917,856.29/1,376,631.74 = 278,007.90/x
  3. Step 3: Cross multiply
    917,856.29x = 1,376,631.74 × 278,007.90
  4. Step 4: Simplify right side
    917,856.29x = 382,714,503,257.18
  5. Step 5: Solve for x
    x = 382,714,503,257.18/917,856.29
  6. Step 6: Final answer
    x = 416,965.60

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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.