Home / 1,278,525.22-1,918,100.23-425,595.22

Finding the Fourth Proportional to 1,278,525.22, 1,918,100.23 and 425,595.22

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Solution

The fourth proportional to 1,278,525.22, 1,918,100.23 and 425,595.22 is: 638,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,525.22 : 1,918,100.23 = 425,595.22 : x
  2. Step 2: Convert to fraction form
    1,278,525.22/1,918,100.23 = 425,595.22/x
  3. Step 3: Cross multiply
    1,278,525.22x = 1,918,100.23 × 425,595.22
  4. Step 4: Simplify right side
    1,278,525.22x = 816,334,283,509.66
  5. Step 5: Solve for x
    x = 816,334,283,509.66/1,278,525.22
  6. Step 6: Final answer
    x = 638,496.82

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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.