Home / 986,856.30-1,361,873.16-578,965.14

Finding the Fourth Proportional to 986,856.30, 1,361,873.16 and 578,965.14

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Solution

The fourth proportional to 986,856.30, 1,361,873.16 and 578,965.14 is: 798,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,856.30 : 1,361,873.16 = 578,965.14 : x
  2. Step 2: Convert to fraction form
    986,856.30/1,361,873.16 = 578,965.14/x
  3. Step 3: Cross multiply
    986,856.30x = 1,361,873.16 × 578,965.14
  4. Step 4: Simplify right side
    986,856.30x = 788,477,084,741.64
  5. Step 5: Solve for x
    x = 788,477,084,741.64/986,856.30
  6. Step 6: Final answer
    x = 798,978.62

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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.