Home / 1,421,336.30-2,131,770.92-510,330.18

Finding the Fourth Proportional to 1,421,336.30, 2,131,770.92 and 510,330.18

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Solution

The fourth proportional to 1,421,336.30, 2,131,770.92 and 510,330.18 is: 765,411.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,336.30 : 2,131,770.92 = 510,330.18 : x
  2. Step 2: Convert to fraction form
    1,421,336.30/2,131,770.92 = 510,330.18/x
  3. Step 3: Cross multiply
    1,421,336.30x = 2,131,770.92 × 510,330.18
  4. Step 4: Simplify right side
    1,421,336.30x = 1,087,907,037,322.37
  5. Step 5: Solve for x
    x = 1,087,907,037,322.37/1,421,336.30
  6. Step 6: Final answer
    x = 765,411.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.