Home / 931,711.45-1,285,732.02-523,830.55

Finding the Fourth Proportional to 931,711.45, 1,285,732.02 and 523,830.55

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Solution

The fourth proportional to 931,711.45, 1,285,732.02 and 523,830.55 is: 722,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,711.45 : 1,285,732.02 = 523,830.55 : x
  2. Step 2: Convert to fraction form
    931,711.45/1,285,732.02 = 523,830.55/x
  3. Step 3: Cross multiply
    931,711.45x = 1,285,732.02 × 523,830.55
  4. Step 4: Simplify right side
    931,711.45x = 673,505,711,189.21
  5. Step 5: Solve for x
    x = 673,505,711,189.21/931,711.45
  6. Step 6: Final answer
    x = 722,869.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.