Home / 842,921.80-1,264,382.70-482,722.90

Finding the Fourth Proportional to 842,921.80, 1,264,382.70 and 482,722.90

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Solution

The fourth proportional to 842,921.80, 1,264,382.70 and 482,722.90 is: 724,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,921.80 : 1,264,382.70 = 482,722.90 : x
  2. Step 2: Convert to fraction form
    842,921.80/1,264,382.70 = 482,722.90/x
  3. Step 3: Cross multiply
    842,921.80x = 1,264,382.70 × 482,722.90
  4. Step 4: Simplify right side
    842,921.80x = 610,346,483,653.83
  5. Step 5: Solve for x
    x = 610,346,483,653.83/842,921.80
  6. Step 6: Final answer
    x = 724,084.35

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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.