Home / 526,520.10-789,780.15-302,571.30

Finding the Fourth Proportional to 526,520.10, 789,780.15 and 302,571.30

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Solution

The fourth proportional to 526,520.10, 789,780.15 and 302,571.30 is: 453,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,520.10 : 789,780.15 = 302,571.30 : x
  2. Step 2: Convert to fraction form
    526,520.10/789,780.15 = 302,571.30/x
  3. Step 3: Cross multiply
    526,520.10x = 789,780.15 × 302,571.30
  4. Step 4: Simplify right side
    526,520.10x = 238,964,806,699.70
  5. Step 5: Solve for x
    x = 238,964,806,699.70/526,520.10
  6. Step 6: Final answer
    x = 453,856.95

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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.