Home / 913,920.56-1,260,813.30-551,142.82

Finding the Fourth Proportional to 913,920.56, 1,260,813.30 and 551,142.82

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Solution

The fourth proportional to 913,920.56, 1,260,813.30 and 551,142.82 is: 760,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,920.56 : 1,260,813.30 = 551,142.82 : x
  2. Step 2: Convert to fraction form
    913,920.56/1,260,813.30 = 551,142.82/x
  3. Step 3: Cross multiply
    913,920.56x = 1,260,813.30 × 551,142.82
  4. Step 4: Simplify right side
    913,920.56x = 694,888,194,503.47
  5. Step 5: Solve for x
    x = 694,888,194,503.47/913,920.56
  6. Step 6: Final answer
    x = 760,337.64

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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.