Home / 470,711.81-649,583.20-255,851.36

Finding the Fourth Proportional to 470,711.81, 649,583.20 and 255,851.36

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Solution

The fourth proportional to 470,711.81, 649,583.20 and 255,851.36 is: 353,075.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,711.81 : 649,583.20 = 255,851.36 : x
  2. Step 2: Convert to fraction form
    470,711.81/649,583.20 = 255,851.36/x
  3. Step 3: Cross multiply
    470,711.81x = 649,583.20 × 255,851.36
  4. Step 4: Simplify right side
    470,711.81x = 166,196,743,221.82
  5. Step 5: Solve for x
    x = 166,196,743,221.82/470,711.81
  6. Step 6: Final answer
    x = 353,075.37

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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.