Home / 699,939.50-966,215.08-470,629.70

Finding the Fourth Proportional to 699,939.50, 966,215.08 and 470,629.70

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Solution

The fourth proportional to 699,939.50, 966,215.08 and 470,629.70 is: 649,669.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,939.50 : 966,215.08 = 470,629.70 : x
  2. Step 2: Convert to fraction form
    699,939.50/966,215.08 = 470,629.70/x
  3. Step 3: Cross multiply
    699,939.50x = 966,215.08 × 470,629.70
  4. Step 4: Simplify right side
    699,939.50x = 454,729,513,235.88
  5. Step 5: Solve for x
    x = 454,729,513,235.88/699,939.50
  6. Step 6: Final answer
    x = 649,669.74

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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.