Home / 811,247.76-1,119,866.62-505,475.22

Finding the Fourth Proportional to 811,247.76, 1,119,866.62 and 505,475.22

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Solution

The fourth proportional to 811,247.76, 1,119,866.62 and 505,475.22 is: 697,770.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,247.76 : 1,119,866.62 = 505,475.22 : x
  2. Step 2: Convert to fraction form
    811,247.76/1,119,866.62 = 505,475.22/x
  3. Step 3: Cross multiply
    811,247.76x = 1,119,866.62 × 505,475.22
  4. Step 4: Simplify right side
    811,247.76x = 566,064,828,010.69
  5. Step 5: Solve for x
    x = 566,064,828,010.69/811,247.76
  6. Step 6: Final answer
    x = 697,770.59

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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.