Home / 831,521.80-1,248,011.70-494,140.60

Finding the Fourth Proportional to 831,521.80, 1,248,011.70 and 494,140.60

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Solution

The fourth proportional to 831,521.80, 1,248,011.70 and 494,140.60 is: 741,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,521.80 : 1,248,011.70 = 494,140.60 : x
  2. Step 2: Convert to fraction form
    831,521.80/1,248,011.70 = 494,140.60/x
  3. Step 3: Cross multiply
    831,521.80x = 1,248,011.70 × 494,140.60
  4. Step 4: Simplify right side
    831,521.80x = 616,693,250,245.02
  5. Step 5: Solve for x
    x = 616,693,250,245.02/831,521.80
  6. Step 6: Final answer
    x = 741,644.12

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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.