Home / 5,265,081.28-7,897,621.86-1,275,993.28

Finding the Fourth Proportional to 5,265,081.28, 7,897,621.86 and 1,275,993.28

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Solution

The fourth proportional to 5,265,081.28, 7,897,621.86 and 1,275,993.28 is: 1,913,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265,081.28 : 7,897,621.86 = 1,275,993.28 : x
  2. Step 2: Convert to fraction form
    5,265,081.28/7,897,621.86 = 1,275,993.28/x
  3. Step 3: Cross multiply
    5,265,081.28x = 7,897,621.86 × 1,275,993.28
  4. Step 4: Simplify right side
    5,265,081.28x = 10,077,312,421,341.10
  5. Step 5: Solve for x
    x = 10,077,312,421,341.10/5,265,081.28
  6. Step 6: Final answer
    x = 1,913,989.91

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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.