Home / 986,799.40-1,361,794.31-578,908.18

Finding the Fourth Proportional to 986,799.40, 1,361,794.31 and 578,908.18

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Solution

The fourth proportional to 986,799.40, 1,361,794.31 and 578,908.18 is: 798,899.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,799.40 : 1,361,794.31 = 578,908.18 : x
  2. Step 2: Convert to fraction form
    986,799.40/1,361,794.31 = 578,908.18/x
  3. Step 3: Cross multiply
    986,799.40x = 1,361,794.31 × 578,908.18
  4. Step 4: Simplify right side
    986,799.40x = 788,353,865,536.46
  5. Step 5: Solve for x
    x = 788,353,865,536.46/986,799.40
  6. Step 6: Final answer
    x = 798,899.82

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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.