Home / 1,285,606.62-1,928,388.47-312,981.17

Finding the Fourth Proportional to 1,285,606.62, 1,928,388.47 and 312,981.17

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Solution

The fourth proportional to 1,285,606.62, 1,928,388.47 and 312,981.17 is: 469,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,606.62 : 1,928,388.47 = 312,981.17 : x
  2. Step 2: Convert to fraction form
    1,285,606.62/1,928,388.47 = 312,981.17/x
  3. Step 3: Cross multiply
    1,285,606.62x = 1,928,388.47 × 312,981.17
  4. Step 4: Simplify right side
    1,285,606.62x = 603,549,268,348.26
  5. Step 5: Solve for x
    x = 603,549,268,348.26/1,285,606.62
  6. Step 6: Final answer
    x = 469,466.52

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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.