Home / 761,805.26-1,143,082.33-306,378.32

Finding the Fourth Proportional to 761,805.26, 1,143,082.33 and 306,378.32

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Solution

The fourth proportional to 761,805.26, 1,143,082.33 and 306,378.32 is: 459,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,805.26 : 1,143,082.33 = 306,378.32 : x
  2. Step 2: Convert to fraction form
    761,805.26/1,143,082.33 = 306,378.32/x
  3. Step 3: Cross multiply
    761,805.26x = 1,143,082.33 × 306,378.32
  4. Step 4: Simplify right side
    761,805.26x = 350,215,643,887.09
  5. Step 5: Solve for x
    x = 350,215,643,887.09/761,805.26
  6. Step 6: Final answer
    x = 459,718.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.