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Finding the Fourth Proportional to 471,482.78, 650,660.32 and 290,299.24

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Solution

The fourth proportional to 471,482.78, 650,660.32 and 290,299.24 is: 400,621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,482.78 : 650,660.32 = 290,299.24 : x
  2. Step 2: Convert to fraction form
    471,482.78/650,660.32 = 290,299.24/x
  3. Step 3: Cross multiply
    471,482.78x = 650,660.32 × 290,299.24
  4. Step 4: Simplify right side
    471,482.78x = 188,886,194,041.76
  5. Step 5: Solve for x
    x = 188,886,194,041.76/471,482.78
  6. Step 6: Final answer
    x = 400,621.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.