Home / 470,974.04-649,948.79-256,118.75

Finding the Fourth Proportional to 470,974.04, 649,948.79 and 256,118.75

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Solution

The fourth proportional to 470,974.04, 649,948.79 and 256,118.75 is: 353,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,974.04 : 649,948.79 = 256,118.75 : x
  2. Step 2: Convert to fraction form
    470,974.04/649,948.79 = 256,118.75/x
  3. Step 3: Cross multiply
    470,974.04x = 649,948.79 × 256,118.75
  4. Step 4: Simplify right side
    470,974.04x = 166,464,070,378.22
  5. Step 5: Solve for x
    x = 166,464,070,378.22/470,974.04
  6. Step 6: Final answer
    x = 353,446.38

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Double scale
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Similar ratio
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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.