Home / 917,249.94-1,265,762.36-509,377.68

Finding the Fourth Proportional to 917,249.94, 1,265,762.36 and 509,377.68

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Solution

The fourth proportional to 917,249.94, 1,265,762.36 and 509,377.68 is: 702,917.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,249.94 : 1,265,762.36 = 509,377.68 : x
  2. Step 2: Convert to fraction form
    917,249.94/1,265,762.36 = 509,377.68/x
  3. Step 3: Cross multiply
    917,249.94x = 1,265,762.36 × 509,377.68
  4. Step 4: Simplify right side
    917,249.94x = 644,751,095,641.57
  5. Step 5: Solve for x
    x = 644,751,095,641.57/917,249.94
  6. Step 6: Final answer
    x = 702,917.57

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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.