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Finding the Fourth Proportional to 630,634.60, 945,951.90 and 620,266.60

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Solution

The fourth proportional to 630,634.60, 945,951.90 and 620,266.60 is: 930,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,634.60 : 945,951.90 = 620,266.60 : x
  2. Step 2: Convert to fraction form
    630,634.60/945,951.90 = 620,266.60/x
  3. Step 3: Cross multiply
    630,634.60x = 945,951.90 × 620,266.60
  4. Step 4: Simplify right side
    630,634.60x = 586,742,368,776.54
  5. Step 5: Solve for x
    x = 586,742,368,776.54/630,634.60
  6. Step 6: Final answer
    x = 930,399.90

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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.