Home / 2,781,278.51-4,172,564.75-862,087.91

Finding the Fourth Proportional to 2,781,278.51, 4,172,564.75 and 862,087.91

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Solution

The fourth proportional to 2,781,278.51, 4,172,564.75 and 862,087.91 is: 1,293,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,278.51 : 4,172,564.75 = 862,087.91 : x
  2. Step 2: Convert to fraction form
    2,781,278.51/4,172,564.75 = 862,087.91/x
  3. Step 3: Cross multiply
    2,781,278.51x = 4,172,564.75 × 862,087.91
  4. Step 4: Simplify right side
    2,781,278.51x = 3,597,117,599,493.91
  5. Step 5: Solve for x
    x = 3,597,117,599,493.91/2,781,278.51
  6. Step 6: Final answer
    x = 1,293,332.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.