Home / 1,128,836.30-1,557,795.10-612,590.20

Finding the Fourth Proportional to 1,128,836.30, 1,557,795.10 and 612,590.20

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Solution

The fourth proportional to 1,128,836.30, 1,557,795.10 and 612,590.20 is: 845,375.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,836.30 : 1,557,795.10 = 612,590.20 : x
  2. Step 2: Convert to fraction form
    1,128,836.30/1,557,795.10 = 612,590.20/x
  3. Step 3: Cross multiply
    1,128,836.30x = 1,557,795.10 × 612,590.20
  4. Step 4: Simplify right side
    1,128,836.30x = 954,290,011,868.02
  5. Step 5: Solve for x
    x = 954,290,011,868.02/1,128,836.30
  6. Step 6: Final answer
    x = 845,375.02

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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.