Home / 442,707.20-660,607.94-394,994.30

Finding the Fourth Proportional to 442,707.20, 660,607.94 and 394,994.30

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Solution

The fourth proportional to 442,707.20, 660,607.94 and 394,994.30 is: 589,410.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,707.20 : 660,607.94 = 394,994.30 : x
  2. Step 2: Convert to fraction form
    442,707.20/660,607.94 = 394,994.30/x
  3. Step 3: Cross multiply
    442,707.20x = 660,607.94 × 394,994.30
  4. Step 4: Simplify right side
    442,707.20x = 260,936,370,834.74
  5. Step 5: Solve for x
    x = 260,936,370,834.74/442,707.20
  6. Step 6: Final answer
    x = 589,410.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.