Home / 625,278.18-862,899.93-383,694.24

Finding the Fourth Proportional to 625,278.18, 862,899.93 and 383,694.24

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Solution

The fourth proportional to 625,278.18, 862,899.93 and 383,694.24 is: 529,507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,278.18 : 862,899.93 = 383,694.24 : x
  2. Step 2: Convert to fraction form
    625,278.18/862,899.93 = 383,694.24/x
  3. Step 3: Cross multiply
    625,278.18x = 862,899.93 × 383,694.24
  4. Step 4: Simplify right side
    625,278.18x = 331,089,732,837.40
  5. Step 5: Solve for x
    x = 331,089,732,837.40/625,278.18
  6. Step 6: Final answer
    x = 529,507.89

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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.