Home / 1,434,912.60-1,980,192.78-790,335.12

Finding the Fourth Proportional to 1,434,912.60, 1,980,192.78 and 790,335.12

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Solution

The fourth proportional to 1,434,912.60, 1,980,192.78 and 790,335.12 is: 1,090,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,912.60 : 1,980,192.78 = 790,335.12 : x
  2. Step 2: Convert to fraction form
    1,434,912.60/1,980,192.78 = 790,335.12/x
  3. Step 3: Cross multiply
    1,434,912.60x = 1,980,192.78 × 790,335.12
  4. Step 4: Simplify right side
    1,434,912.60x = 1,565,015,898,404.43
  5. Step 5: Solve for x
    x = 1,565,015,898,404.43/1,434,912.60
  6. Step 6: Final answer
    x = 1,090,669.84

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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.