Home / 917,236.31-1,265,743.56-509,364.15

Finding the Fourth Proportional to 917,236.31, 1,265,743.56 and 509,364.15

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Solution

The fourth proportional to 917,236.31, 1,265,743.56 and 509,364.15 is: 702,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,236.31 : 1,265,743.56 = 509,364.15 : x
  2. Step 2: Convert to fraction form
    917,236.31/1,265,743.56 = 509,364.15/x
  3. Step 3: Cross multiply
    917,236.31x = 1,265,743.56 × 509,364.15
  4. Step 4: Simplify right side
    917,236.31x = 644,724,389,720.95
  5. Step 5: Solve for x
    x = 644,724,389,720.95/917,236.31
  6. Step 6: Final answer
    x = 702,898.90

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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.