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Finding the Fourth Proportional to 515,598.48, 773,434.71 and 215,777.25

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Solution

The fourth proportional to 515,598.48, 773,434.71 and 215,777.25 is: 323,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,598.48 : 773,434.71 = 215,777.25 : x
  2. Step 2: Convert to fraction form
    515,598.48/773,434.71 = 215,777.25/x
  3. Step 3: Cross multiply
    515,598.48x = 773,434.71 × 215,777.25
  4. Step 4: Simplify right side
    515,598.48x = 166,889,614,778.35
  5. Step 5: Solve for x
    x = 166,889,614,778.35/515,598.48
  6. Step 6: Final answer
    x = 323,681.36

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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.