Home / 651,667.32-977,635.80-314,942.28

Finding the Fourth Proportional to 651,667.32, 977,635.80 and 314,942.28

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Solution

The fourth proportional to 651,667.32, 977,635.80 and 314,942.28 is: 472,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,667.32 : 977,635.80 = 314,942.28 : x
  2. Step 2: Convert to fraction form
    651,667.32/977,635.80 = 314,942.28/x
  3. Step 3: Cross multiply
    651,667.32x = 977,635.80 × 314,942.28
  4. Step 4: Simplify right side
    651,667.32x = 307,898,847,861.62
  5. Step 5: Solve for x
    x = 307,898,847,861.62/651,667.32
  6. Step 6: Final answer
    x = 472,478.58

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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.