Home / 1,531,219.80-2,113,039.20-852,141.72

Finding the Fourth Proportional to 1,531,219.80, 2,113,039.20 and 852,141.72

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Solution

The fourth proportional to 1,531,219.80, 2,113,039.20 and 852,141.72 is: 1,175,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,219.80 : 2,113,039.20 = 852,141.72 : x
  2. Step 2: Convert to fraction form
    1,531,219.80/2,113,039.20 = 852,141.72/x
  3. Step 3: Cross multiply
    1,531,219.80x = 2,113,039.20 × 852,141.72
  4. Step 4: Simplify right side
    1,531,219.80x = 1,800,608,858,315.42
  5. Step 5: Solve for x
    x = 1,800,608,858,315.42/1,531,219.80
  6. Step 6: Final answer
    x = 1,175,931.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.