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Finding the Fourth Proportional to 606,998.60, 910,497.90 and 291,379.40

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Solution

The fourth proportional to 606,998.60, 910,497.90 and 291,379.40 is: 437,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,998.60 : 910,497.90 = 291,379.40 : x
  2. Step 2: Convert to fraction form
    606,998.60/910,497.90 = 291,379.40/x
  3. Step 3: Cross multiply
    606,998.60x = 910,497.90 × 291,379.40
  4. Step 4: Simplify right side
    606,998.60x = 265,300,331,803.26
  5. Step 5: Solve for x
    x = 265,300,331,803.26/606,998.60
  6. Step 6: Final answer
    x = 437,069.10

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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.