Home / 1,128,515.29-1,557,351.02-645,090.82

Finding the Fourth Proportional to 1,128,515.29, 1,557,351.02 and 645,090.82

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Solution

The fourth proportional to 1,128,515.29, 1,557,351.02 and 645,090.82 is: 890,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,515.29 : 1,557,351.02 = 645,090.82 : x
  2. Step 2: Convert to fraction form
    1,128,515.29/1,557,351.02 = 645,090.82/x
  3. Step 3: Cross multiply
    1,128,515.29x = 1,557,351.02 × 645,090.82
  4. Step 4: Simplify right side
    1,128,515.29x = 1,004,632,844,238.99
  5. Step 5: Solve for x
    x = 1,004,632,844,238.99/1,128,515.29
  6. Step 6: Final answer
    x = 890,225.29

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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.