Home / 426,125.34-639,210.03-404,577.12

Finding the Fourth Proportional to 426,125.34, 639,210.03 and 404,577.12

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Solution

The fourth proportional to 426,125.34, 639,210.03 and 404,577.12 is: 606,886.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,125.34 : 639,210.03 = 404,577.12 : x
  2. Step 2: Convert to fraction form
    426,125.34/639,210.03 = 404,577.12/x
  3. Step 3: Cross multiply
    426,125.34x = 639,210.03 × 404,577.12
  4. Step 4: Simplify right side
    426,125.34x = 258,609,753,012.51
  5. Step 5: Solve for x
    x = 258,609,753,012.51/426,125.34
  6. Step 6: Final answer
    x = 606,886.59

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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.