Home / 1,320,443.64-1,822,214.04-716,831.64

Finding the Fourth Proportional to 1,320,443.64, 1,822,214.04 and 716,831.64

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Solution

The fourth proportional to 1,320,443.64, 1,822,214.04 and 716,831.64 is: 989,228.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,443.64 : 1,822,214.04 = 716,831.64 : x
  2. Step 2: Convert to fraction form
    1,320,443.64/1,822,214.04 = 716,831.64/x
  3. Step 3: Cross multiply
    1,320,443.64x = 1,822,214.04 × 716,831.64
  4. Step 4: Simplify right side
    1,320,443.64x = 1,306,220,678,724.23
  5. Step 5: Solve for x
    x = 1,306,220,678,724.23/1,320,443.64
  6. Step 6: Final answer
    x = 989,228.65

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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.