Home / 789,140.96-1,183,823.76-256,490.72

Finding the Fourth Proportional to 789,140.96, 1,183,823.76 and 256,490.72

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Solution

The fourth proportional to 789,140.96, 1,183,823.76 and 256,490.72 is: 384,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,140.96 : 1,183,823.76 = 256,490.72 : x
  2. Step 2: Convert to fraction form
    789,140.96/1,183,823.76 = 256,490.72/x
  3. Step 3: Cross multiply
    789,140.96x = 1,183,823.76 × 256,490.72
  4. Step 4: Simplify right side
    789,140.96x = 303,639,808,555.51
  5. Step 5: Solve for x
    x = 303,639,808,555.51/789,140.96
  6. Step 6: Final answer
    x = 384,772.59

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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.