Home / 931,715.76-1,285,993.08-868,678.32

Finding the Fourth Proportional to 931,715.76, 1,285,993.08 and 868,678.32

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Solution

The fourth proportional to 931,715.76, 1,285,993.08 and 868,678.32 is: 1,198,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,715.76 : 1,285,993.08 = 868,678.32 : x
  2. Step 2: Convert to fraction form
    931,715.76/1,285,993.08 = 868,678.32/x
  3. Step 3: Cross multiply
    931,715.76x = 1,285,993.08 × 868,678.32
  4. Step 4: Simplify right side
    931,715.76x = 1,117,114,308,266.03
  5. Step 5: Solve for x
    x = 1,117,114,308,266.03/931,715.76
  6. Step 6: Final answer
    x = 1,198,986.17

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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.