Home / 746,431.80-1,119,906.90-326,009.40

Finding the Fourth Proportional to 746,431.80, 1,119,906.90 and 326,009.40

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Solution

The fourth proportional to 746,431.80, 1,119,906.90 and 326,009.40 is: 489,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,431.80 : 1,119,906.90 = 326,009.40 : x
  2. Step 2: Convert to fraction form
    746,431.80/1,119,906.90 = 326,009.40/x
  3. Step 3: Cross multiply
    746,431.80x = 1,119,906.90 × 326,009.40
  4. Step 4: Simplify right side
    746,431.80x = 365,100,176,524.86
  5. Step 5: Solve for x
    x = 365,100,176,524.86/746,431.80
  6. Step 6: Final answer
    x = 489,127.31

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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.