Home / 917,366.31-1,265,982.48-509,505.93

Finding the Fourth Proportional to 917,366.31, 1,265,982.48 and 509,505.93

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Solution

The fourth proportional to 917,366.31, 1,265,982.48 and 509,505.93 is: 703,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,366.31 : 1,265,982.48 = 509,505.93 : x
  2. Step 2: Convert to fraction form
    917,366.31/1,265,982.48 = 509,505.93/x
  3. Step 3: Cross multiply
    917,366.31x = 1,265,982.48 × 509,505.93
  4. Step 4: Simplify right side
    917,366.31x = 645,025,580,836.11
  5. Step 5: Solve for x
    x = 645,025,580,836.11/917,366.31
  6. Step 6: Final answer
    x = 703,127.61

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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.