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Finding the Fourth Proportional to 626,595.08, 864,701.88 and 340,115.12

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Solution

The fourth proportional to 626,595.08, 864,701.88 and 340,115.12 is: 469,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,595.08 : 864,701.88 = 340,115.12 : x
  2. Step 2: Convert to fraction form
    626,595.08/864,701.88 = 340,115.12/x
  3. Step 3: Cross multiply
    626,595.08x = 864,701.88 × 340,115.12
  4. Step 4: Simplify right side
    626,595.08x = 294,098,183,680.43
  5. Step 5: Solve for x
    x = 294,098,183,680.43/626,595.08
  6. Step 6: Final answer
    x = 469,359.23

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Double scale
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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.