Home / 810,327.36-1,118,247.48-447,776.28

Finding the Fourth Proportional to 810,327.36, 1,118,247.48 and 447,776.28

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Solution

The fourth proportional to 810,327.36, 1,118,247.48 and 447,776.28 is: 617,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,327.36 : 1,118,247.48 = 447,776.28 : x
  2. Step 2: Convert to fraction form
    810,327.36/1,118,247.48 = 447,776.28/x
  3. Step 3: Cross multiply
    810,327.36x = 1,118,247.48 × 447,776.28
  4. Step 4: Simplify right side
    810,327.36x = 500,724,696,713.77
  5. Step 5: Solve for x
    x = 500,724,696,713.77/810,327.36
  6. Step 6: Final answer
    x = 617,928.90

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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.