Home / 831,759.40-1,245,795.90-644,162.60

Finding the Fourth Proportional to 831,759.40, 1,245,795.90 and 644,162.60

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Solution

The fourth proportional to 831,759.40, 1,245,795.90 and 644,162.60 is: 964,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,759.40 : 1,245,795.90 = 644,162.60 : x
  2. Step 2: Convert to fraction form
    831,759.40/1,245,795.90 = 644,162.60/x
  3. Step 3: Cross multiply
    831,759.40x = 1,245,795.90 × 644,162.60
  4. Step 4: Simplify right side
    831,759.40x = 802,495,126,013.34
  5. Step 5: Solve for x
    x = 802,495,126,013.34/831,759.40
  6. Step 6: Final answer
    x = 964,816.42

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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.