Home / 780,856.97-1,077,575.01-436,689.05

Finding the Fourth Proportional to 780,856.97, 1,077,575.01 and 436,689.05

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Solution

The fourth proportional to 780,856.97, 1,077,575.01 and 436,689.05 is: 602,626.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,856.97 : 1,077,575.01 = 436,689.05 : x
  2. Step 2: Convert to fraction form
    780,856.97/1,077,575.01 = 436,689.05/x
  3. Step 3: Cross multiply
    780,856.97x = 1,077,575.01 × 436,689.05
  4. Step 4: Simplify right side
    780,856.97x = 470,565,207,420.64
  5. Step 5: Solve for x
    x = 470,565,207,420.64/780,856.97
  6. Step 6: Final answer
    x = 602,626.63

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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.