Home / 847,161.72-1,270,369.42-398,010.28

Finding the Fourth Proportional to 847,161.72, 1,270,369.42 and 398,010.28

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Solution

The fourth proportional to 847,161.72, 1,270,369.42 and 398,010.28 is: 596,840.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,161.72 : 1,270,369.42 = 398,010.28 : x
  2. Step 2: Convert to fraction form
    847,161.72/1,270,369.42 = 398,010.28/x
  3. Step 3: Cross multiply
    847,161.72x = 1,270,369.42 × 398,010.28
  4. Step 4: Simplify right side
    847,161.72x = 505,620,088,557.64
  5. Step 5: Solve for x
    x = 505,620,088,557.64/847,161.72
  6. Step 6: Final answer
    x = 596,840.10

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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.