Home / 1,353,621.51-1,867,298.91-917,891.49

Finding the Fourth Proportional to 1,353,621.51, 1,867,298.91 and 917,891.49

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Solution

The fourth proportional to 1,353,621.51, 1,867,298.91 and 917,891.49 is: 1,266,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,621.51 : 1,867,298.91 = 917,891.49 : x
  2. Step 2: Convert to fraction form
    1,353,621.51/1,867,298.91 = 917,891.49/x
  3. Step 3: Cross multiply
    1,353,621.51x = 1,867,298.91 × 917,891.49
  4. Step 4: Simplify right side
    1,353,621.51x = 1,713,977,778,775.28
  5. Step 5: Solve for x
    x = 1,713,977,778,775.28/1,353,621.51
  6. Step 6: Final answer
    x = 1,266,216.42

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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.