Home / 1,427,831.52-2,140,327.68-715,686

Finding the Fourth Proportional to 1,427,831.52, 2,140,327.68 and 715,686

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Solution

The fourth proportional to 1,427,831.52, 2,140,327.68 and 715,686 is: 1,072,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,831.52 : 2,140,327.68 = 715,686 : x
  2. Step 2: Convert to fraction form
    1,427,831.52/2,140,327.68 = 715,686/x
  3. Step 3: Cross multiply
    1,427,831.52x = 2,140,327.68 × 715,686
  4. Step 4: Simplify right side
    1,427,831.52x = 1,531,802,555,988.48
  5. Step 5: Solve for x
    x = 1,531,802,555,988.48/1,427,831.52
  6. Step 6: Final answer
    x = 1,072,817.44

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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.