Home / 1,994,131.92-2,990,570.47-645,981.74

Finding the Fourth Proportional to 1,994,131.92, 2,990,570.47 and 645,981.74

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Solution

The fourth proportional to 1,994,131.92, 2,990,570.47 and 645,981.74 is: 968,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,131.92 : 2,990,570.47 = 645,981.74 : x
  2. Step 2: Convert to fraction form
    1,994,131.92/2,990,570.47 = 645,981.74/x
  3. Step 3: Cross multiply
    1,994,131.92x = 2,990,570.47 × 645,981.74
  4. Step 4: Simplify right side
    1,994,131.92x = 1,931,853,900,850.37
  5. Step 5: Solve for x
    x = 1,931,853,900,850.37/1,994,131.92
  6. Step 6: Final answer
    x = 968,769.36

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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.