Home / 928,272.12-1,391,330.60-351,528.80

Finding the Fourth Proportional to 928,272.12, 1,391,330.60 and 351,528.80

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Solution

The fourth proportional to 928,272.12, 1,391,330.60 and 351,528.80 is: 526,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,272.12 : 1,391,330.60 = 351,528.80 : x
  2. Step 2: Convert to fraction form
    928,272.12/1,391,330.60 = 351,528.80/x
  3. Step 3: Cross multiply
    928,272.12x = 1,391,330.60 × 351,528.80
  4. Step 4: Simplify right side
    928,272.12x = 489,092,776,221.28
  5. Step 5: Solve for x
    x = 489,092,776,221.28/928,272.12
  6. Step 6: Final answer
    x = 526,885.13

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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.