Home / 928,235.21-1,391,275.22-351,491.72

Finding the Fourth Proportional to 928,235.21, 1,391,275.22 and 351,491.72

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Solution

The fourth proportional to 928,235.21, 1,391,275.22 and 351,491.72 is: 526,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,235.21 : 1,391,275.22 = 351,491.72 : x
  2. Step 2: Convert to fraction form
    928,235.21/1,391,275.22 = 351,491.72/x
  3. Step 3: Cross multiply
    928,235.21x = 1,391,275.22 × 351,491.72
  4. Step 4: Simplify right side
    928,235.21x = 489,021,711,357.34
  5. Step 5: Solve for x
    x = 489,021,711,357.34/928,235.21
  6. Step 6: Final answer
    x = 526,829.52

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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.