Home / 1,131,639.02-1,561,630.72-622,341.40

Finding the Fourth Proportional to 1,131,639.02, 1,561,630.72 and 622,341.40

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Solution

The fourth proportional to 1,131,639.02, 1,561,630.72 and 622,341.40 is: 858,814.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,639.02 : 1,561,630.72 = 622,341.40 : x
  2. Step 2: Convert to fraction form
    1,131,639.02/1,561,630.72 = 622,341.40/x
  3. Step 3: Cross multiply
    1,131,639.02x = 1,561,630.72 × 622,341.40
  4. Step 4: Simplify right side
    1,131,639.02x = 971,867,448,567.81
  5. Step 5: Solve for x
    x = 971,867,448,567.81/1,131,639.02
  6. Step 6: Final answer
    x = 858,814.01

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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.