Home / 2,190,999.30-3,023,278.47-1,224,009.42

Finding the Fourth Proportional to 2,190,999.30, 3,023,278.47 and 1,224,009.42

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Solution

The fourth proportional to 2,190,999.30, 3,023,278.47 and 1,224,009.42 is: 1,688,965.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,999.30 : 3,023,278.47 = 1,224,009.42 : x
  2. Step 2: Convert to fraction form
    2,190,999.30/3,023,278.47 = 1,224,009.42/x
  3. Step 3: Cross multiply
    2,190,999.30x = 3,023,278.47 × 1,224,009.42
  4. Step 4: Simplify right side
    2,190,999.30x = 3,700,521,326,563.19
  5. Step 5: Solve for x
    x = 3,700,521,326,563.19/2,190,999.30
  6. Step 6: Final answer
    x = 1,688,965.09

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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.