Home / 830,458.60-1,245,687.82-475,221.49

Finding the Fourth Proportional to 830,458.60, 1,245,687.82 and 475,221.49

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Solution

The fourth proportional to 830,458.60, 1,245,687.82 and 475,221.49 is: 712,832.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,458.60 : 1,245,687.82 = 475,221.49 : x
  2. Step 2: Convert to fraction form
    830,458.60/1,245,687.82 = 475,221.49/x
  3. Step 3: Cross multiply
    830,458.60x = 1,245,687.82 × 475,221.49
  4. Step 4: Simplify right side
    830,458.60x = 591,977,621,895.25
  5. Step 5: Solve for x
    x = 591,977,621,895.25/830,458.60
  6. Step 6: Final answer
    x = 712,832.19

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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.