Home / 1,520,209.29-2,280,372.26-678,768.33

Finding the Fourth Proportional to 1,520,209.29, 2,280,372.26 and 678,768.33

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Solution

The fourth proportional to 1,520,209.29, 2,280,372.26 and 678,768.33 is: 1,018,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,209.29 : 2,280,372.26 = 678,768.33 : x
  2. Step 2: Convert to fraction form
    1,520,209.29/2,280,372.26 = 678,768.33/x
  3. Step 3: Cross multiply
    1,520,209.29x = 2,280,372.26 × 678,768.33
  4. Step 4: Simplify right side
    1,520,209.29x = 1,547,844,467,304.68
  5. Step 5: Solve for x
    x = 1,547,844,467,304.68/1,520,209.29
  6. Step 6: Final answer
    x = 1,018,178.53

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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.