Home / 1,238,495.40-1,858,002.30-397,132.20

Finding the Fourth Proportional to 1,238,495.40, 1,858,002.30 and 397,132.20

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Solution

The fourth proportional to 1,238,495.40, 1,858,002.30 and 397,132.20 is: 595,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,495.40 : 1,858,002.30 = 397,132.20 : x
  2. Step 2: Convert to fraction form
    1,238,495.40/1,858,002.30 = 397,132.20/x
  3. Step 3: Cross multiply
    1,238,495.40x = 1,858,002.30 × 397,132.20
  4. Step 4: Simplify right side
    1,238,495.40x = 737,872,541,004.06
  5. Step 5: Solve for x
    x = 737,872,541,004.06/1,238,495.40
  6. Step 6: Final answer
    x = 595,781.41

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1.5x scale

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.