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Finding the Fourth Proportional to 437,619.10, 656,428.65 and 437,619.10

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Solution

The fourth proportional to 437,619.10, 656,428.65 and 437,619.10 is: 656,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,619.10 : 656,428.65 = 437,619.10 : x
  2. Step 2: Convert to fraction form
    437,619.10/656,428.65 = 437,619.10/x
  3. Step 3: Cross multiply
    437,619.10x = 656,428.65 × 437,619.10
  4. Step 4: Simplify right side
    437,619.10x = 287,265,715,027.22
  5. Step 5: Solve for x
    x = 287,265,715,027.22/437,619.10
  6. Step 6: Final answer
    x = 656,428.65

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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.