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Finding the Fourth Proportional to 507,200.28, 760,515.90 and 347,456.64

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Solution

The fourth proportional to 507,200.28, 760,515.90 and 347,456.64 is: 520,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,200.28 : 760,515.90 = 347,456.64 : x
  2. Step 2: Convert to fraction form
    507,200.28/760,515.90 = 347,456.64/x
  3. Step 3: Cross multiply
    507,200.28x = 760,515.90 × 347,456.64
  4. Step 4: Simplify right side
    507,200.28x = 264,246,299,280.58
  5. Step 5: Solve for x
    x = 264,246,299,280.58/507,200.28
  6. Step 6: Final answer
    x = 520,990.05

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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.