Home / 780,845.89-1,077,622.25-436,713.85

Finding the Fourth Proportional to 780,845.89, 1,077,622.25 and 436,713.85

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Solution

The fourth proportional to 780,845.89, 1,077,622.25 and 436,713.85 is: 602,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,845.89 : 1,077,622.25 = 436,713.85 : x
  2. Step 2: Convert to fraction form
    780,845.89/1,077,622.25 = 436,713.85/x
  3. Step 3: Cross multiply
    780,845.89x = 1,077,622.25 × 436,713.85
  4. Step 4: Simplify right side
    780,845.89x = 470,612,557,939.32
  5. Step 5: Solve for x
    x = 470,612,557,939.32/780,845.89
  6. Step 6: Final answer
    x = 602,695.82

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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.