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Finding the Fourth Proportional to 699,945, 966,222.66 and 470,635.20

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Solution

The fourth proportional to 699,945, 966,222.66 and 470,635.20 is: 649,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,945 : 966,222.66 = 470,635.20 : x
  2. Step 2: Convert to fraction form
    699,945/966,222.66 = 470,635.20/x
  3. Step 3: Cross multiply
    699,945x = 966,222.66 × 470,635.20
  4. Step 4: Simplify right side
    699,945x = 454,738,394,833.63
  5. Step 5: Solve for x
    x = 454,738,394,833.63/699,945
  6. Step 6: Final answer
    x = 649,677.32

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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.