Home / 851,187.90-1,174,647.29-469,228.35

Finding the Fourth Proportional to 851,187.90, 1,174,647.29 and 469,228.35

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Solution

The fourth proportional to 851,187.90, 1,174,647.29 and 469,228.35 is: 647,539.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,187.90 : 1,174,647.29 = 469,228.35 : x
  2. Step 2: Convert to fraction form
    851,187.90/1,174,647.29 = 469,228.35/x
  3. Step 3: Cross multiply
    851,187.90x = 1,174,647.29 × 469,228.35
  4. Step 4: Simplify right side
    851,187.90x = 551,177,807,372.53
  5. Step 5: Solve for x
    x = 551,177,807,372.53/851,187.90
  6. Step 6: Final answer
    x = 647,539.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.