Home / 917,662.28-1,266,576.35-509,904.23

Finding the Fourth Proportional to 917,662.28, 1,266,576.35 and 509,904.23

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Solution

The fourth proportional to 917,662.28, 1,266,576.35 and 509,904.23 is: 703,780.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,662.28 : 1,266,576.35 = 509,904.23 : x
  2. Step 2: Convert to fraction form
    917,662.28/1,266,576.35 = 509,904.23/x
  3. Step 3: Cross multiply
    917,662.28x = 1,266,576.35 × 509,904.23
  4. Step 4: Simplify right side
    917,662.28x = 645,832,629,600.56
  5. Step 5: Solve for x
    x = 645,832,629,600.56/917,662.28
  6. Step 6: Final answer
    x = 703,780.30

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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.