Home / 1,426,028.25-1,967,919.02-781,473.81

Finding the Fourth Proportional to 1,426,028.25, 1,967,919.02 and 781,473.81

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Solution

The fourth proportional to 1,426,028.25, 1,967,919.02 and 781,473.81 is: 1,078,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,028.25 : 1,967,919.02 = 781,473.81 : x
  2. Step 2: Convert to fraction form
    1,426,028.25/1,967,919.02 = 781,473.81/x
  3. Step 3: Cross multiply
    1,426,028.25x = 1,967,919.02 × 781,473.81
  4. Step 4: Simplify right side
    1,426,028.25x = 1,537,877,170,423.50
  5. Step 5: Solve for x
    x = 1,537,877,170,423.50/1,426,028.25
  6. Step 6: Final answer
    x = 1,078,433.87

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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.