Home / 788,779.20-1,183,341.60-256,209.60

Finding the Fourth Proportional to 788,779.20, 1,183,341.60 and 256,209.60

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Solution

The fourth proportional to 788,779.20, 1,183,341.60 and 256,209.60 is: 384,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,779.20 : 1,183,341.60 = 256,209.60 : x
  2. Step 2: Convert to fraction form
    788,779.20/1,183,341.60 = 256,209.60/x
  3. Step 3: Cross multiply
    788,779.20x = 1,183,341.60 × 256,209.60
  4. Step 4: Simplify right side
    788,779.20x = 303,183,477,999.36
  5. Step 5: Solve for x
    x = 303,183,477,999.36/788,779.20
  6. Step 6: Final answer
    x = 384,370.53

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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.