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Finding the Fourth Proportional to 606,999.60, 910,499.40 and 291,380.40

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Solution

The fourth proportional to 606,999.60, 910,499.40 and 291,380.40 is: 437,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,999.60 : 910,499.40 = 291,380.40 : x
  2. Step 2: Convert to fraction form
    606,999.60/910,499.40 = 291,380.40/x
  3. Step 3: Cross multiply
    606,999.60x = 910,499.40 × 291,380.40
  4. Step 4: Simplify right side
    606,999.60x = 265,301,679,371.76
  5. Step 5: Solve for x
    x = 265,301,679,371.76/606,999.60
  6. Step 6: Final answer
    x = 437,070.60

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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.