Home / 1,121,717.14-1,547,961.56-612,419.51

Finding the Fourth Proportional to 1,121,717.14, 1,547,961.56 and 612,419.51

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Solution

The fourth proportional to 1,121,717.14, 1,547,961.56 and 612,419.51 is: 845,134.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,717.14 : 1,547,961.56 = 612,419.51 : x
  2. Step 2: Convert to fraction form
    1,121,717.14/1,547,961.56 = 612,419.51/x
  3. Step 3: Cross multiply
    1,121,717.14x = 1,547,961.56 × 612,419.51
  4. Step 4: Simplify right side
    1,121,717.14x = 948,001,860,881.84
  5. Step 5: Solve for x
    x = 948,001,860,881.84/1,121,717.14
  6. Step 6: Final answer
    x = 845,134.51

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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.