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Finding the Fourth Proportional to 517,304.75, 775,989.93 and 162,332.78

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Solution

The fourth proportional to 517,304.75, 775,989.93 and 162,332.78 is: 243,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,304.75 : 775,989.93 = 162,332.78 : x
  2. Step 2: Convert to fraction form
    517,304.75/775,989.93 = 162,332.78/x
  3. Step 3: Cross multiply
    517,304.75x = 775,989.93 × 162,332.78
  4. Step 4: Simplify right side
    517,304.75x = 125,968,604,528.88
  5. Step 5: Solve for x
    x = 125,968,604,528.88/517,304.75
  6. Step 6: Final answer
    x = 243,509.47

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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.