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Finding the Fourth Proportional to 522,975.60, 782,495.10 and 345,828.60

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Solution

The fourth proportional to 522,975.60, 782,495.10 and 345,828.60 is: 517,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,975.60 : 782,495.10 = 345,828.60 : x
  2. Step 2: Convert to fraction form
    522,975.60/782,495.10 = 345,828.60/x
  3. Step 3: Cross multiply
    522,975.60x = 782,495.10 × 345,828.60
  4. Step 4: Simplify right side
    522,975.60x = 270,609,184,939.86
  5. Step 5: Solve for x
    x = 270,609,184,939.86/522,975.60
  6. Step 6: Final answer
    x = 517,441.32

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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.