Home / 917,727.17-1,266,422.45-509,855.31

Finding the Fourth Proportional to 917,727.17, 1,266,422.45 and 509,855.31

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Solution

The fourth proportional to 917,727.17, 1,266,422.45 and 509,855.31 is: 703,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,727.17 : 1,266,422.45 = 509,855.31 : x
  2. Step 2: Convert to fraction form
    917,727.17/1,266,422.45 = 509,855.31/x
  3. Step 3: Cross multiply
    917,727.17x = 1,266,422.45 × 509,855.31
  4. Step 4: Simplify right side
    917,727.17x = 645,692,208,286.43
  5. Step 5: Solve for x
    x = 645,692,208,286.43/917,727.17
  6. Step 6: Final answer
    x = 703,577.53

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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.