Home / 1,121,698.56-1,547,936.08-612,400.88

Finding the Fourth Proportional to 1,121,698.56, 1,547,936.08 and 612,400.88

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Solution

The fourth proportional to 1,121,698.56, 1,547,936.08 and 612,400.88 is: 845,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,698.56 : 1,547,936.08 = 612,400.88 : x
  2. Step 2: Convert to fraction form
    1,121,698.56/1,547,936.08 = 612,400.88/x
  3. Step 3: Cross multiply
    1,121,698.56x = 1,547,936.08 × 612,400.88
  4. Step 4: Simplify right side
    1,121,698.56x = 947,957,417,575.75
  5. Step 5: Solve for x
    x = 947,957,417,575.75/1,121,698.56
  6. Step 6: Final answer
    x = 845,108.88

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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.