Home / 426,482.31-639,944.87-173,948.07

Finding the Fourth Proportional to 426,482.31, 639,944.87 and 173,948.07

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Solution

The fourth proportional to 426,482.31, 639,944.87 and 173,948.07 is: 261,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,482.31 : 639,944.87 = 173,948.07 : x
  2. Step 2: Convert to fraction form
    426,482.31/639,944.87 = 173,948.07/x
  3. Step 3: Cross multiply
    426,482.31x = 639,944.87 × 173,948.07
  4. Step 4: Simplify right side
    426,482.31x = 111,317,174,173.16
  5. Step 5: Solve for x
    x = 111,317,174,173.16/426,482.31
  6. Step 6: Final answer
    x = 261,012.41

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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.