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Finding the Fourth Proportional to 551,495.58, 760,945.85 and 321,948.69

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Solution

The fourth proportional to 551,495.58, 760,945.85 and 321,948.69 is: 444,220.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,495.58 : 760,945.85 = 321,948.69 : x
  2. Step 2: Convert to fraction form
    551,495.58/760,945.85 = 321,948.69/x
  3. Step 3: Cross multiply
    551,495.58x = 760,945.85 × 321,948.69
  4. Step 4: Simplify right side
    551,495.58x = 244,985,517,958.69
  5. Step 5: Solve for x
    x = 244,985,517,958.69/551,495.58
  6. Step 6: Final answer
    x = 444,220.27

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1.5x scale

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.