Home / 931,982.40-1,399,010.40-577,396.80

Finding the Fourth Proportional to 931,982.40, 1,399,010.40 and 577,396.80

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Solution

The fourth proportional to 931,982.40, 1,399,010.40 and 577,396.80 is: 866,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,982.40 : 1,399,010.40 = 577,396.80 : x
  2. Step 2: Convert to fraction form
    931,982.40/1,399,010.40 = 577,396.80/x
  3. Step 3: Cross multiply
    931,982.40x = 1,399,010.40 × 577,396.80
  4. Step 4: Simplify right side
    931,982.40x = 807,784,128,126.72
  5. Step 5: Solve for x
    x = 807,784,128,126.72/931,982.40
  6. Step 6: Final answer
    x = 866,737.54

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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.