Home / 1,008,919.48-1,391,521.22-646,376.84

Finding the Fourth Proportional to 1,008,919.48, 1,391,521.22 and 646,376.84

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Solution

The fourth proportional to 1,008,919.48, 1,391,521.22 and 646,376.84 is: 891,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,919.48 : 1,391,521.22 = 646,376.84 : x
  2. Step 2: Convert to fraction form
    1,008,919.48/1,391,521.22 = 646,376.84/x
  3. Step 3: Cross multiply
    1,008,919.48x = 1,391,521.22 × 646,376.84
  4. Step 4: Simplify right side
    1,008,919.48x = 899,447,088,976.55
  5. Step 5: Solve for x
    x = 899,447,088,976.55/1,008,919.48
  6. Step 6: Final answer
    x = 891,495.41

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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.