Home / 764,056.86-1,146,123.37-290,778.90

Finding the Fourth Proportional to 764,056.86, 1,146,123.37 and 290,778.90

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Solution

The fourth proportional to 764,056.86, 1,146,123.37 and 290,778.90 is: 436,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,056.86 : 1,146,123.37 = 290,778.90 : x
  2. Step 2: Convert to fraction form
    764,056.86/1,146,123.37 = 290,778.90/x
  3. Step 3: Cross multiply
    764,056.86x = 1,146,123.37 × 290,778.90
  4. Step 4: Simplify right side
    764,056.86x = 333,268,495,818.70
  5. Step 5: Solve for x
    x = 333,268,495,818.70/764,056.86
  6. Step 6: Final answer
    x = 436,182.84

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Double scale
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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.