Home / 917,666.70-1,266,344.79-509,794.17

Finding the Fourth Proportional to 917,666.70, 1,266,344.79 and 509,794.17

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Solution

The fourth proportional to 917,666.70, 1,266,344.79 and 509,794.17 is: 703,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,666.70 : 1,266,344.79 = 509,794.17 : x
  2. Step 2: Convert to fraction form
    917,666.70/1,266,344.79 = 509,794.17/x
  3. Step 3: Cross multiply
    917,666.70x = 1,266,344.79 × 509,794.17
  4. Step 4: Simplify right side
    917,666.70x = 645,575,191,151.87
  5. Step 5: Solve for x
    x = 645,575,191,151.87/917,666.70
  6. Step 6: Final answer
    x = 703,496.37

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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.