Home / 1,285,210.90-1,927,233.15-486,226.90

Finding the Fourth Proportional to 1,285,210.90, 1,927,233.15 and 486,226.90

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Solution

The fourth proportional to 1,285,210.90, 1,927,233.15 and 486,226.90 is: 729,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,210.90 : 1,927,233.15 = 486,226.90 : x
  2. Step 2: Convert to fraction form
    1,285,210.90/1,927,233.15 = 486,226.90/x
  3. Step 3: Cross multiply
    1,285,210.90x = 1,927,233.15 × 486,226.90
  4. Step 4: Simplify right side
    1,285,210.90x = 937,072,600,101.74
  5. Step 5: Solve for x
    x = 937,072,600,101.74/1,285,210.90
  6. Step 6: Final answer
    x = 729,119.71

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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.