Home / 2,990,861.60-4,486,875.60-1,285,001.60

Finding the Fourth Proportional to 2,990,861.60, 4,486,875.60 and 1,285,001.60

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Solution

The fourth proportional to 2,990,861.60, 4,486,875.60 and 1,285,001.60 is: 1,927,752.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,861.60 : 4,486,875.60 = 1,285,001.60 : x
  2. Step 2: Convert to fraction form
    2,990,861.60/4,486,875.60 = 1,285,001.60/x
  3. Step 3: Cross multiply
    2,990,861.60x = 4,486,875.60 × 1,285,001.60
  4. Step 4: Simplify right side
    2,990,861.60x = 5,765,642,325,000.96
  5. Step 5: Solve for x
    x = 5,765,642,325,000.96/2,990,861.60
  6. Step 6: Final answer
    x = 1,927,752.97

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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.