Home / 1,128,425.10-1,557,228.51-619,131.12

Finding the Fourth Proportional to 1,128,425.10, 1,557,228.51 and 619,131.12

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Solution

The fourth proportional to 1,128,425.10, 1,557,228.51 and 619,131.12 is: 854,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,425.10 : 1,557,228.51 = 619,131.12 : x
  2. Step 2: Convert to fraction form
    1,128,425.10/1,557,228.51 = 619,131.12/x
  3. Step 3: Cross multiply
    1,128,425.10x = 1,557,228.51 × 619,131.12
  4. Step 4: Simplify right side
    1,128,425.10x = 964,128,631,492.23
  5. Step 5: Solve for x
    x = 964,128,631,492.23/1,128,425.10
  6. Step 6: Final answer
    x = 854,401.97

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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.