Home / 1,426,393.13-1,968,418.46-781,811.33

Finding the Fourth Proportional to 1,426,393.13, 1,968,418.46 and 781,811.33

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Solution

The fourth proportional to 1,426,393.13, 1,968,418.46 and 781,811.33 is: 1,078,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,393.13 : 1,968,418.46 = 781,811.33 : x
  2. Step 2: Convert to fraction form
    1,426,393.13/1,968,418.46 = 781,811.33/x
  3. Step 3: Cross multiply
    1,426,393.13x = 1,968,418.46 × 781,811.33
  4. Step 4: Simplify right side
    1,426,393.13x = 1,538,931,840,458.00
  5. Step 5: Solve for x
    x = 1,538,931,840,458.00/1,426,393.13
  6. Step 6: Final answer
    x = 1,078,897.40

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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.