Home / 1,561,349.88-2,153,831.69-949,689.72

Finding the Fourth Proportional to 1,561,349.88, 2,153,831.69 and 949,689.72

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Solution

The fourth proportional to 1,561,349.88, 2,153,831.69 and 949,689.72 is: 1,310,066.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,349.88 : 2,153,831.69 = 949,689.72 : x
  2. Step 2: Convert to fraction form
    1,561,349.88/2,153,831.69 = 949,689.72/x
  3. Step 3: Cross multiply
    1,561,349.88x = 2,153,831.69 × 949,689.72
  4. Step 4: Simplify right side
    1,561,349.88x = 2,045,471,814,603.23
  5. Step 5: Solve for x
    x = 2,045,471,814,603.23/1,561,349.88
  6. Step 6: Final answer
    x = 1,310,066.27

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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.