Home / 913,310.74-1,260,310.80-499,763.62

Finding the Fourth Proportional to 913,310.74, 1,260,310.80 and 499,763.62

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Solution

The fourth proportional to 913,310.74, 1,260,310.80 and 499,763.62 is: 689,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,310.74 : 1,260,310.80 = 499,763.62 : x
  2. Step 2: Convert to fraction form
    913,310.74/1,260,310.80 = 499,763.62/x
  3. Step 3: Cross multiply
    913,310.74x = 1,260,310.80 × 499,763.62
  4. Step 4: Simplify right side
    913,310.74x = 629,857,487,733.10
  5. Step 5: Solve for x
    x = 629,857,487,733.10/913,310.74
  6. Step 6: Final answer
    x = 689,642.05

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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.