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Finding the Fourth Proportional to 565,411.60, 848,117.40 and 285,475.60

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Solution

The fourth proportional to 565,411.60, 848,117.40 and 285,475.60 is: 428,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,411.60 : 848,117.40 = 285,475.60 : x
  2. Step 2: Convert to fraction form
    565,411.60/848,117.40 = 285,475.60/x
  3. Step 3: Cross multiply
    565,411.60x = 848,117.40 × 285,475.60
  4. Step 4: Simplify right side
    565,411.60x = 242,116,823,635.44
  5. Step 5: Solve for x
    x = 242,116,823,635.44/565,411.60
  6. Step 6: Final answer
    x = 428,213.40

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Double scale
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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.