Home / 1,238,242-1,857,363.40-817,419.46

Finding the Fourth Proportional to 1,238,242, 1,857,363.40 and 817,419.46

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Solution

The fourth proportional to 1,238,242, 1,857,363.40 and 817,419.46 is: 1,226,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,242 : 1,857,363.40 = 817,419.46 : x
  2. Step 2: Convert to fraction form
    1,238,242/1,857,363.40 = 817,419.46/x
  3. Step 3: Cross multiply
    1,238,242x = 1,857,363.40 × 817,419.46
  4. Step 4: Simplify right side
    1,238,242x = 1,518,244,987,451.76
  5. Step 5: Solve for x
    x = 1,518,244,987,451.76/1,238,242
  6. Step 6: Final answer
    x = 1,226,129.45

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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.