Home / 1,426,574.27-1,968,672.53-781,980.64

Finding the Fourth Proportional to 1,426,574.27, 1,968,672.53 and 781,980.64

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Solution

The fourth proportional to 1,426,574.27, 1,968,672.53 and 781,980.64 is: 1,079,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,574.27 : 1,968,672.53 = 781,980.64 : x
  2. Step 2: Convert to fraction form
    1,426,574.27/1,968,672.53 = 781,980.64/x
  3. Step 3: Cross multiply
    1,426,574.27x = 1,968,672.53 × 781,980.64
  4. Step 4: Simplify right side
    1,426,574.27x = 1,539,463,801,993.09
  5. Step 5: Solve for x
    x = 1,539,463,801,993.09/1,426,574.27
  6. Step 6: Final answer
    x = 1,079,133.30

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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.