Home / 917,245.54-1,265,774.34-509,336.74

Finding the Fourth Proportional to 917,245.54, 1,265,774.34 and 509,336.74

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Solution

The fourth proportional to 917,245.54, 1,265,774.34 and 509,336.74 is: 702,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,245.54 : 1,265,774.34 = 509,336.74 : x
  2. Step 2: Convert to fraction form
    917,245.54/1,265,774.34 = 509,336.74/x
  3. Step 3: Cross multiply
    917,245.54x = 1,265,774.34 × 509,336.74
  4. Step 4: Simplify right side
    917,245.54x = 644,705,375,911.25
  5. Step 5: Solve for x
    x = 644,705,375,911.25/917,245.54
  6. Step 6: Final answer
    x = 702,871.09

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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.