Home / 767,913-1,059,588.72-445,549.20

Finding the Fourth Proportional to 767,913, 1,059,588.72 and 445,549.20

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Solution

The fourth proportional to 767,913, 1,059,588.72 and 445,549.20 is: 614,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,913 : 1,059,588.72 = 445,549.20 : x
  2. Step 2: Convert to fraction form
    767,913/1,059,588.72 = 445,549.20/x
  3. Step 3: Cross multiply
    767,913x = 1,059,588.72 × 445,549.20
  4. Step 4: Simplify right side
    767,913x = 472,098,906,525.02
  5. Step 5: Solve for x
    x = 472,098,906,525.02/767,913
  6. Step 6: Final answer
    x = 614,781.76

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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.