Home / 451,621.89-677,434.01-152,312.72

Finding the Fourth Proportional to 451,621.89, 677,434.01 and 152,312.72

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Solution

The fourth proportional to 451,621.89, 677,434.01 and 152,312.72 is: 228,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,621.89 : 677,434.01 = 152,312.72 : x
  2. Step 2: Convert to fraction form
    451,621.89/677,434.01 = 152,312.72/x
  3. Step 3: Cross multiply
    451,621.89x = 677,434.01 × 152,312.72
  4. Step 4: Simplify right side
    451,621.89x = 103,181,812,534.87
  5. Step 5: Solve for x
    x = 103,181,812,534.87/451,621.89
  6. Step 6: Final answer
    x = 228,469.47

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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.