Home / 486,760.22-671,292.77-405,358.03

Finding the Fourth Proportional to 486,760.22, 671,292.77 and 405,358.03

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Solution

The fourth proportional to 486,760.22, 671,292.77 and 405,358.03 is: 559,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,760.22 : 671,292.77 = 405,358.03 : x
  2. Step 2: Convert to fraction form
    486,760.22/671,292.77 = 405,358.03/x
  3. Step 3: Cross multiply
    486,760.22x = 671,292.77 × 405,358.03
  4. Step 4: Simplify right side
    486,760.22x = 272,113,911,724.76
  5. Step 5: Solve for x
    x = 272,113,911,724.76/486,760.22
  6. Step 6: Final answer
    x = 559,030.71

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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.