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Finding the Fourth Proportional to 515,969.32, 774,015.53 and 249,538.38

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Solution

The fourth proportional to 515,969.32, 774,015.53 and 249,538.38 is: 374,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,969.32 : 774,015.53 = 249,538.38 : x
  2. Step 2: Convert to fraction form
    515,969.32/774,015.53 = 249,538.38/x
  3. Step 3: Cross multiply
    515,969.32x = 774,015.53 × 249,538.38
  4. Step 4: Simplify right side
    515,969.32x = 193,146,580,203.35
  5. Step 5: Solve for x
    x = 193,146,580,203.35/515,969.32
  6. Step 6: Final answer
    x = 374,337.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.