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Finding the Fourth Proportional to 291,701.60, 409,626.40 and 291,701.60

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Solution

The fourth proportional to 291,701.60, 409,626.40 and 291,701.60 is: 409,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,701.60 : 409,626.40 = 291,701.60 : x
  2. Step 2: Convert to fraction form
    291,701.60/409,626.40 = 291,701.60/x
  3. Step 3: Cross multiply
    291,701.60x = 409,626.40 × 291,701.60
  4. Step 4: Simplify right side
    291,701.60x = 119,488,676,282.24
  5. Step 5: Solve for x
    x = 119,488,676,282.24/291,701.60
  6. Step 6: Final answer
    x = 409,626.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.