Home / 780,706.97-1,077,377.58-436,555.38

Finding the Fourth Proportional to 780,706.97, 1,077,377.58 and 436,555.38

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Solution

The fourth proportional to 780,706.97, 1,077,377.58 and 436,555.38 is: 602,447.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,706.97 : 1,077,377.58 = 436,555.38 : x
  2. Step 2: Convert to fraction form
    780,706.97/1,077,377.58 = 436,555.38/x
  3. Step 3: Cross multiply
    780,706.97x = 1,077,377.58 × 436,555.38
  4. Step 4: Simplify right side
    780,706.97x = 470,334,978,840.38
  5. Step 5: Solve for x
    x = 470,334,978,840.38/780,706.97
  6. Step 6: Final answer
    x = 602,447.53

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1.5x scale

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.