Home / 2,131,275.36-3,196,913.28-869,201.76

Finding the Fourth Proportional to 2,131,275.36, 3,196,913.28 and 869,201.76

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Solution

The fourth proportional to 2,131,275.36, 3,196,913.28 and 869,201.76 is: 1,303,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,275.36 : 3,196,913.28 = 869,201.76 : x
  2. Step 2: Convert to fraction form
    2,131,275.36/3,196,913.28 = 869,201.76/x
  3. Step 3: Cross multiply
    2,131,275.36x = 3,196,913.28 × 869,201.76
  4. Step 4: Simplify right side
    2,131,275.36x = 2,778,762,649,543.37
  5. Step 5: Solve for x
    x = 2,778,762,649,543.37/2,131,275.36
  6. Step 6: Final answer
    x = 1,303,802.74

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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.