Home / 780,705.47-1,077,375.51-436,553.88

Finding the Fourth Proportional to 780,705.47, 1,077,375.51 and 436,553.88

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Solution

The fourth proportional to 780,705.47, 1,077,375.51 and 436,553.88 is: 602,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,705.47 : 1,077,375.51 = 436,553.88 : x
  2. Step 2: Convert to fraction form
    780,705.47/1,077,375.51 = 436,553.88/x
  3. Step 3: Cross multiply
    780,705.47x = 1,077,375.51 × 436,553.88
  4. Step 4: Simplify right side
    780,705.47x = 470,332,459,107.48
  5. Step 5: Solve for x
    x = 470,332,459,107.48/780,705.47
  6. Step 6: Final answer
    x = 602,445.46

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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.