Home / 1,323,490.33-1,985,235.86-326,218.33

Finding the Fourth Proportional to 1,323,490.33, 1,985,235.86 and 326,218.33

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Solution

The fourth proportional to 1,323,490.33, 1,985,235.86 and 326,218.33 is: 489,327.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,490.33 : 1,985,235.86 = 326,218.33 : x
  2. Step 2: Convert to fraction form
    1,323,490.33/1,985,235.86 = 326,218.33/x
  3. Step 3: Cross multiply
    1,323,490.33x = 1,985,235.86 × 326,218.33
  4. Step 4: Simplify right side
    1,323,490.33x = 647,620,326,905.31
  5. Step 5: Solve for x
    x = 647,620,326,905.31/1,323,490.33
  6. Step 6: Final answer
    x = 489,327.58

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Double scale
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Similar ratio
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1.5x scale

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.