Home / 1,531,278.72-2,295,790.56-520,128.18

Finding the Fourth Proportional to 1,531,278.72, 2,295,790.56 and 520,128.18

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Solution

The fourth proportional to 1,531,278.72, 2,295,790.56 and 520,128.18 is: 779,809.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,278.72 : 2,295,790.56 = 520,128.18 : x
  2. Step 2: Convert to fraction form
    1,531,278.72/2,295,790.56 = 520,128.18/x
  3. Step 3: Cross multiply
    1,531,278.72x = 2,295,790.56 × 520,128.18
  4. Step 4: Simplify right side
    1,531,278.72x = 1,194,105,365,633.98
  5. Step 5: Solve for x
    x = 1,194,105,365,633.98/1,531,278.72
  6. Step 6: Final answer
    x = 779,809.29

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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.