Home / 1,898,841.42-2,620,467.81-1,039,402.40

Finding the Fourth Proportional to 1,898,841.42, 2,620,467.81 and 1,039,402.40

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Solution

The fourth proportional to 1,898,841.42, 2,620,467.81 and 1,039,402.40 is: 1,434,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,841.42 : 2,620,467.81 = 1,039,402.40 : x
  2. Step 2: Convert to fraction form
    1,898,841.42/2,620,467.81 = 1,039,402.40/x
  3. Step 3: Cross multiply
    1,898,841.42x = 2,620,467.81 × 1,039,402.40
  4. Step 4: Simplify right side
    1,898,841.42x = 2,723,720,517,734.41
  5. Step 5: Solve for x
    x = 2,723,720,517,734.41/1,898,841.42
  6. Step 6: Final answer
    x = 1,434,411.79

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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.