Home / 470,271.30-649,172.56-317,516.18

Finding the Fourth Proportional to 470,271.30, 649,172.56 and 317,516.18

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Solution

The fourth proportional to 470,271.30, 649,172.56 and 317,516.18 is: 438,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,271.30 : 649,172.56 = 317,516.18 : x
  2. Step 2: Convert to fraction form
    470,271.30/649,172.56 = 317,516.18/x
  3. Step 3: Cross multiply
    470,271.30x = 649,172.56 × 317,516.18
  4. Step 4: Simplify right side
    470,271.30x = 206,122,795,244.39
  5. Step 5: Solve for x
    x = 206,122,795,244.39/470,271.30
  6. Step 6: Final answer
    x = 438,306.13

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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.