Home / 1,994,131.70-2,990,570.14-645,981.52

Finding the Fourth Proportional to 1,994,131.70, 2,990,570.14 and 645,981.52

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Solution

The fourth proportional to 1,994,131.70, 2,990,570.14 and 645,981.52 is: 968,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,131.70 : 2,990,570.14 = 645,981.52 : x
  2. Step 2: Convert to fraction form
    1,994,131.70/2,990,570.14 = 645,981.52/x
  3. Step 3: Cross multiply
    1,994,131.70x = 2,990,570.14 × 645,981.52
  4. Step 4: Simplify right side
    1,994,131.70x = 1,931,853,043,642.18
  5. Step 5: Solve for x
    x = 1,931,853,043,642.18/1,994,131.70
  6. Step 6: Final answer
    x = 968,769.04

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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.