Home / 986,888.45-1,478,090.60-772,319.15

Finding the Fourth Proportional to 986,888.45, 1,478,090.60 and 772,319.15

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Solution

The fourth proportional to 986,888.45, 1,478,090.60 and 772,319.15 is: 1,156,724.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,888.45 : 1,478,090.60 = 772,319.15 : x
  2. Step 2: Convert to fraction form
    986,888.45/1,478,090.60 = 772,319.15/x
  3. Step 3: Cross multiply
    986,888.45x = 1,478,090.60 × 772,319.15
  4. Step 4: Simplify right side
    986,888.45x = 1,141,557,664,562.94
  5. Step 5: Solve for x
    x = 1,141,557,664,562.94/986,888.45
  6. Step 6: Final answer
    x = 1,156,724.11

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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.