Home / 788,780.70-1,183,343.85-256,211.10

Finding the Fourth Proportional to 788,780.70, 1,183,343.85 and 256,211.10

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Solution

The fourth proportional to 788,780.70, 1,183,343.85 and 256,211.10 is: 384,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,780.70 : 1,183,343.85 = 256,211.10 : x
  2. Step 2: Convert to fraction form
    788,780.70/1,183,343.85 = 256,211.10/x
  3. Step 3: Cross multiply
    788,780.70x = 1,183,343.85 × 256,211.10
  4. Step 4: Simplify right side
    788,780.70x = 303,185,829,486.74
  5. Step 5: Solve for x
    x = 303,185,829,486.74/788,780.70
  6. Step 6: Final answer
    x = 384,372.78

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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.