Home / 1,272,704.40-1,909,013.40-326,084.40

Finding the Fourth Proportional to 1,272,704.40, 1,909,013.40 and 326,084.40

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Solution

The fourth proportional to 1,272,704.40, 1,909,013.40 and 326,084.40 is: 489,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,704.40 : 1,909,013.40 = 326,084.40 : x
  2. Step 2: Convert to fraction form
    1,272,704.40/1,909,013.40 = 326,084.40/x
  3. Step 3: Cross multiply
    1,272,704.40x = 1,909,013.40 × 326,084.40
  4. Step 4: Simplify right side
    1,272,704.40x = 622,499,489,130.96
  5. Step 5: Solve for x
    x = 622,499,489,130.96/1,272,704.40
  6. Step 6: Final answer
    x = 489,115.53

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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.