Home / 1,550,841-2,326,261.50-428,910

Finding the Fourth Proportional to 1,550,841, 2,326,261.50 and 428,910

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Solution

The fourth proportional to 1,550,841, 2,326,261.50 and 428,910 is: 643,365

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,841 : 2,326,261.50 = 428,910 : x
  2. Step 2: Convert to fraction form
    1,550,841/2,326,261.50 = 428,910/x
  3. Step 3: Cross multiply
    1,550,841x = 2,326,261.50 × 428,910
  4. Step 4: Simplify right side
    1,550,841x = 997,756,819,965
  5. Step 5: Solve for x
    x = 997,756,819,965/1,550,841
  6. Step 6: Final answer
    x = 643,365

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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.