Home / 986,779.56-1,361,767.16-578,888.36

Finding the Fourth Proportional to 986,779.56, 1,361,767.16 and 578,888.36

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Solution

The fourth proportional to 986,779.56, 1,361,767.16 and 578,888.36 is: 798,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,779.56 : 1,361,767.16 = 578,888.36 : x
  2. Step 2: Convert to fraction form
    986,779.56/1,361,767.16 = 578,888.36/x
  3. Step 3: Cross multiply
    986,779.56x = 1,361,767.16 × 578,888.36
  4. Step 4: Simplify right side
    986,779.56x = 788,311,148,250.98
  5. Step 5: Solve for x
    x = 788,311,148,250.98/986,779.56
  6. Step 6: Final answer
    x = 798,872.60

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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.