Home / 1,772,005.20-2,658,007.80-1,635,147.60

Finding the Fourth Proportional to 1,772,005.20, 2,658,007.80 and 1,635,147.60

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Solution

The fourth proportional to 1,772,005.20, 2,658,007.80 and 1,635,147.60 is: 2,452,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772,005.20 : 2,658,007.80 = 1,635,147.60 : x
  2. Step 2: Convert to fraction form
    1,772,005.20/2,658,007.80 = 1,635,147.60/x
  3. Step 3: Cross multiply
    1,772,005.20x = 2,658,007.80 × 1,635,147.60
  4. Step 4: Simplify right side
    1,772,005.20x = 4,346,235,074,951.28
  5. Step 5: Solve for x
    x = 4,346,235,074,951.28/1,772,005.20
  6. Step 6: Final answer
    x = 2,452,721.40

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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.