Home / 2,157,869.34-2,977,647.67-1,190,937.20

Finding the Fourth Proportional to 2,157,869.34, 2,977,647.67 and 1,190,937.20

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Solution

The fourth proportional to 2,157,869.34, 2,977,647.67 and 1,190,937.20 is: 1,643,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,869.34 : 2,977,647.67 = 1,190,937.20 : x
  2. Step 2: Convert to fraction form
    2,157,869.34/2,977,647.67 = 1,190,937.20/x
  3. Step 3: Cross multiply
    2,157,869.34x = 2,977,647.67 × 1,190,937.20
  4. Step 4: Simplify right side
    2,157,869.34x = 3,546,191,378,696.32
  5. Step 5: Solve for x
    x = 3,546,191,378,696.32/2,157,869.34
  6. Step 6: Final answer
    x = 1,643,376.32

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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.