Home / 821,567.20-1,232,350.80-289,688.80

Finding the Fourth Proportional to 821,567.20, 1,232,350.80 and 289,688.80

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Solution

The fourth proportional to 821,567.20, 1,232,350.80 and 289,688.80 is: 434,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,567.20 : 1,232,350.80 = 289,688.80 : x
  2. Step 2: Convert to fraction form
    821,567.20/1,232,350.80 = 289,688.80/x
  3. Step 3: Cross multiply
    821,567.20x = 1,232,350.80 × 289,688.80
  4. Step 4: Simplify right side
    821,567.20x = 356,998,224,431.04
  5. Step 5: Solve for x
    x = 356,998,224,431.04/821,567.20
  6. Step 6: Final answer
    x = 434,533.20

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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.