Home / 1,128,546.12-1,557,389.36-619,257

Finding the Fourth Proportional to 1,128,546.12, 1,557,389.36 and 619,257

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Solution

The fourth proportional to 1,128,546.12, 1,557,389.36 and 619,257 is: 854,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,546.12 : 1,557,389.36 = 619,257 : x
  2. Step 2: Convert to fraction form
    1,128,546.12/1,557,389.36 = 619,257/x
  3. Step 3: Cross multiply
    1,128,546.12x = 1,557,389.36 × 619,257
  4. Step 4: Simplify right side
    1,128,546.12x = 964,424,262,905.52
  5. Step 5: Solve for x
    x = 964,424,262,905.52/1,128,546.12
  6. Step 6: Final answer
    x = 854,572.31

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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.