Home / 1,328,602.28-1,993,219.80-430,044.20

Finding the Fourth Proportional to 1,328,602.28, 1,993,219.80 and 430,044.20

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Solution

The fourth proportional to 1,328,602.28, 1,993,219.80 and 430,044.20 is: 645,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,602.28 : 1,993,219.80 = 430,044.20 : x
  2. Step 2: Convert to fraction form
    1,328,602.28/1,993,219.80 = 430,044.20/x
  3. Step 3: Cross multiply
    1,328,602.28x = 1,993,219.80 × 430,044.20
  4. Step 4: Simplify right side
    1,328,602.28x = 857,172,614,315.16
  5. Step 5: Solve for x
    x = 857,172,614,315.16/1,328,602.28
  6. Step 6: Final answer
    x = 645,168.71

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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.