Home / 1,087,923.72-1,630,079.10-666,313.32

Finding the Fourth Proportional to 1,087,923.72, 1,630,079.10 and 666,313.32

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Solution

The fourth proportional to 1,087,923.72, 1,630,079.10 and 666,313.32 is: 998,363.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,923.72 : 1,630,079.10 = 666,313.32 : x
  2. Step 2: Convert to fraction form
    1,087,923.72/1,630,079.10 = 666,313.32/x
  3. Step 3: Cross multiply
    1,087,923.72x = 1,630,079.10 × 666,313.32
  4. Step 4: Simplify right side
    1,087,923.72x = 1,086,143,416,983.61
  5. Step 5: Solve for x
    x = 1,086,143,416,983.61/1,087,923.72
  6. Step 6: Final answer
    x = 998,363.58

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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.