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Finding the Fourth Proportional to 626,492.56, 864,560.28 and 340,012.60

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Solution

The fourth proportional to 626,492.56, 864,560.28 and 340,012.60 is: 469,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,492.56 : 864,560.28 = 340,012.60 : x
  2. Step 2: Convert to fraction form
    626,492.56/864,560.28 = 340,012.60/x
  3. Step 3: Cross multiply
    626,492.56x = 864,560.28 × 340,012.60
  4. Step 4: Simplify right side
    626,492.56x = 293,961,388,659.53
  5. Step 5: Solve for x
    x = 293,961,388,659.53/626,492.56
  6. Step 6: Final answer
    x = 469,217.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.