Home / 761,802.20-1,143,077.74-306,375.25

Finding the Fourth Proportional to 761,802.20, 1,143,077.74 and 306,375.25

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Solution

The fourth proportional to 761,802.20, 1,143,077.74 and 306,375.25 is: 459,713.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,802.20 : 1,143,077.74 = 306,375.25 : x
  2. Step 2: Convert to fraction form
    761,802.20/1,143,077.74 = 306,375.25/x
  3. Step 3: Cross multiply
    761,802.20x = 1,143,077.74 × 306,375.25
  4. Step 4: Simplify right side
    761,802.20x = 350,210,732,669.21
  5. Step 5: Solve for x
    x = 350,210,732,669.21/761,802.20
  6. Step 6: Final answer
    x = 459,713.47

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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.