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Finding the Fourth Proportional to 607,025.20, 910,537.80 and 291,319.60

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Solution

The fourth proportional to 607,025.20, 910,537.80 and 291,319.60 is: 436,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,025.20 : 910,537.80 = 291,319.60 : x
  2. Step 2: Convert to fraction form
    607,025.20/910,537.80 = 291,319.60/x
  3. Step 3: Cross multiply
    607,025.20x = 910,537.80 × 291,319.60
  4. Step 4: Simplify right side
    607,025.20x = 265,257,507,680.88
  5. Step 5: Solve for x
    x = 265,257,507,680.88/607,025.20
  6. Step 6: Final answer
    x = 436,979.40

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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.