Home / 917,371.17-1,266,003.68-509,479.47

Finding the Fourth Proportional to 917,371.17, 1,266,003.68 and 509,479.47

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Solution

The fourth proportional to 917,371.17, 1,266,003.68 and 509,479.47 is: 703,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,371.17 : 1,266,003.68 = 509,479.47 : x
  2. Step 2: Convert to fraction form
    917,371.17/1,266,003.68 = 509,479.47/x
  3. Step 3: Cross multiply
    917,371.17x = 1,266,003.68 × 509,479.47
  4. Step 4: Simplify right side
    917,371.17x = 645,002,881,357.05
  5. Step 5: Solve for x
    x = 645,002,881,357.05/917,371.17
  6. Step 6: Final answer
    x = 703,099.14

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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.