Home / 1,920,159.86-2,880,229.38-782,917.64

Finding the Fourth Proportional to 1,920,159.86, 2,880,229.38 and 782,917.64

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Solution

The fourth proportional to 1,920,159.86, 2,880,229.38 and 782,917.64 is: 1,174,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,159.86 : 2,880,229.38 = 782,917.64 : x
  2. Step 2: Convert to fraction form
    1,920,159.86/2,880,229.38 = 782,917.64/x
  3. Step 3: Cross multiply
    1,920,159.86x = 2,880,229.38 × 782,917.64
  4. Step 4: Simplify right side
    1,920,159.86x = 2,254,982,388,848.26
  5. Step 5: Solve for x
    x = 2,254,982,388,848.26/1,920,159.86
  6. Step 6: Final answer
    x = 1,174,372.22

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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.