Home / 2,128,402.67-2,937,260.52-1,210,764.80

Finding the Fourth Proportional to 2,128,402.67, 2,937,260.52 and 1,210,764.80

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Solution

The fourth proportional to 2,128,402.67, 2,937,260.52 and 1,210,764.80 is: 1,670,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,402.67 : 2,937,260.52 = 1,210,764.80 : x
  2. Step 2: Convert to fraction form
    2,128,402.67/2,937,260.52 = 1,210,764.80/x
  3. Step 3: Cross multiply
    2,128,402.67x = 2,937,260.52 × 1,210,764.80
  4. Step 4: Simplify right side
    2,128,402.67x = 3,556,331,631,359.39
  5. Step 5: Solve for x
    x = 3,556,331,631,359.39/2,128,402.67
  6. Step 6: Final answer
    x = 1,670,892.30

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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.