Home / 457,913.34-686,902.81-120,950.64

Finding the Fourth Proportional to 457,913.34, 686,902.81 and 120,950.64

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Solution

The fourth proportional to 457,913.34, 686,902.81 and 120,950.64 is: 181,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,913.34 : 686,902.81 = 120,950.64 : x
  2. Step 2: Convert to fraction form
    457,913.34/686,902.81 = 120,950.64/x
  3. Step 3: Cross multiply
    457,913.34x = 686,902.81 × 120,950.64
  4. Step 4: Simplify right side
    457,913.34x = 83,081,334,487.30
  5. Step 5: Solve for x
    x = 83,081,334,487.30/457,913.34
  6. Step 6: Final answer
    x = 181,434.62

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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.