Home / 811,247.01-1,119,865.59-505,474.47

Finding the Fourth Proportional to 811,247.01, 1,119,865.59 and 505,474.47

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Solution

The fourth proportional to 811,247.01, 1,119,865.59 and 505,474.47 is: 697,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,247.01 : 1,119,865.59 = 505,474.47 : x
  2. Step 2: Convert to fraction form
    811,247.01/1,119,865.59 = 505,474.47/x
  3. Step 3: Cross multiply
    811,247.01x = 1,119,865.59 × 505,474.47
  4. Step 4: Simplify right side
    811,247.01x = 566,063,462,792.57
  5. Step 5: Solve for x
    x = 566,063,462,792.57/811,247.01
  6. Step 6: Final answer
    x = 697,769.55

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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.