Home / 1,238,682.60-1,858,023.90-397,319.40

Finding the Fourth Proportional to 1,238,682.60, 1,858,023.90 and 397,319.40

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Solution

The fourth proportional to 1,238,682.60, 1,858,023.90 and 397,319.40 is: 595,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,682.60 : 1,858,023.90 = 397,319.40 : x
  2. Step 2: Convert to fraction form
    1,238,682.60/1,858,023.90 = 397,319.40/x
  3. Step 3: Cross multiply
    1,238,682.60x = 1,858,023.90 × 397,319.40
  4. Step 4: Simplify right side
    1,238,682.60x = 738,228,941,133.66
  5. Step 5: Solve for x
    x = 738,228,941,133.66/1,238,682.60
  6. Step 6: Final answer
    x = 595,979.10

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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.