Home / 904,178.42-1,247,748.40-511,704.11

Finding the Fourth Proportional to 904,178.42, 1,247,748.40 and 511,704.11

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Solution

The fourth proportional to 904,178.42, 1,247,748.40 and 511,704.11 is: 706,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,178.42 : 1,247,748.40 = 511,704.11 : x
  2. Step 2: Convert to fraction form
    904,178.42/1,247,748.40 = 511,704.11/x
  3. Step 3: Cross multiply
    904,178.42x = 1,247,748.40 × 511,704.11
  4. Step 4: Simplify right side
    904,178.42x = 638,477,984,525.92
  5. Step 5: Solve for x
    x = 638,477,984,525.92/904,178.42
  6. Step 6: Final answer
    x = 706,141.59

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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.