Home / 2,157,769.87-2,977,707.76-1,190,900.14

Finding the Fourth Proportional to 2,157,769.87, 2,977,707.76 and 1,190,900.14

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Solution

The fourth proportional to 2,157,769.87, 2,977,707.76 and 1,190,900.14 is: 1,643,434.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,769.87 : 2,977,707.76 = 1,190,900.14 : x
  2. Step 2: Convert to fraction form
    2,157,769.87/2,977,707.76 = 1,190,900.14/x
  3. Step 3: Cross multiply
    2,157,769.87x = 2,977,707.76 × 1,190,900.14
  4. Step 4: Simplify right side
    2,157,769.87x = 3,546,152,577,841.57
  5. Step 5: Solve for x
    x = 3,546,152,577,841.57/2,157,769.87
  6. Step 6: Final answer
    x = 1,643,434.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.