Home / 1,433,680.35-1,978,252.14-821,715.22

Finding the Fourth Proportional to 1,433,680.35, 1,978,252.14 and 821,715.22

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Solution

The fourth proportional to 1,433,680.35, 1,978,252.14 and 821,715.22 is: 1,133,837.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,680.35 : 1,978,252.14 = 821,715.22 : x
  2. Step 2: Convert to fraction form
    1,433,680.35/1,978,252.14 = 821,715.22/x
  3. Step 3: Cross multiply
    1,433,680.35x = 1,978,252.14 × 821,715.22
  4. Step 4: Simplify right side
    1,433,680.35x = 1,625,559,892,435.57
  5. Step 5: Solve for x
    x = 1,625,559,892,435.57/1,433,680.35
  6. Step 6: Final answer
    x = 1,133,837.05

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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.