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Finding the Fourth Proportional to 606,989.70, 910,484.55 and 291,284.10

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Solution

The fourth proportional to 606,989.70, 910,484.55 and 291,284.10 is: 436,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,989.70 : 910,484.55 = 291,284.10 : x
  2. Step 2: Convert to fraction form
    606,989.70/910,484.55 = 291,284.10/x
  3. Step 3: Cross multiply
    606,989.70x = 910,484.55 × 291,284.10
  4. Step 4: Simplify right side
    606,989.70x = 265,209,672,710.66
  5. Step 5: Solve for x
    x = 265,209,672,710.66/606,989.70
  6. Step 6: Final answer
    x = 436,926.15

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Double scale
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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.