Home / 1,128,958.40-1,557,957.12-619,669.44

Finding the Fourth Proportional to 1,128,958.40, 1,557,957.12 and 619,669.44

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Solution

The fourth proportional to 1,128,958.40, 1,557,957.12 and 619,669.44 is: 855,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,958.40 : 1,557,957.12 = 619,669.44 : x
  2. Step 2: Convert to fraction form
    1,128,958.40/1,557,957.12 = 619,669.44/x
  3. Step 3: Cross multiply
    1,128,958.40x = 1,557,957.12 × 619,669.44
  4. Step 4: Simplify right side
    1,128,958.40x = 965,418,416,094.41
  5. Step 5: Solve for x
    x = 965,418,416,094.41/1,128,958.40
  6. Step 6: Final answer
    x = 855,140.82

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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.