Home / 788,692.40-1,183,816.20-389,783.60

Finding the Fourth Proportional to 788,692.40, 1,183,816.20 and 389,783.60

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Solution

The fourth proportional to 788,692.40, 1,183,816.20 and 389,783.60 is: 585,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,692.40 : 1,183,816.20 = 389,783.60 : x
  2. Step 2: Convert to fraction form
    788,692.40/1,183,816.20 = 389,783.60/x
  3. Step 3: Cross multiply
    788,692.40x = 1,183,816.20 × 389,783.60
  4. Step 4: Simplify right side
    788,692.40x = 461,432,140,174.32
  5. Step 5: Solve for x
    x = 461,432,140,174.32/788,692.40
  6. Step 6: Final answer
    x = 585,059.70

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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.