Home / 913,147.55-1,260,180.76-505,242.76

Finding the Fourth Proportional to 913,147.55, 1,260,180.76 and 505,242.76

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Solution

The fourth proportional to 913,147.55, 1,260,180.76 and 505,242.76 is: 697,255.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,147.55 : 1,260,180.76 = 505,242.76 : x
  2. Step 2: Convert to fraction form
    913,147.55/1,260,180.76 = 505,242.76/x
  3. Step 3: Cross multiply
    913,147.55x = 1,260,180.76 × 505,242.76
  4. Step 4: Simplify right side
    913,147.55x = 636,697,205,281.30
  5. Step 5: Solve for x
    x = 636,697,205,281.30/913,147.55
  6. Step 6: Final answer
    x = 697,255.56

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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.