Home / 470,989.04-649,969.20-256,131.12

Finding the Fourth Proportional to 470,989.04, 649,969.20 and 256,131.12

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Solution

The fourth proportional to 470,989.04, 649,969.20 and 256,131.12 is: 353,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,989.04 : 649,969.20 = 256,131.12 : x
  2. Step 2: Convert to fraction form
    470,989.04/649,969.20 = 256,131.12/x
  3. Step 3: Cross multiply
    470,989.04x = 649,969.20 × 256,131.12
  4. Step 4: Simplify right side
    470,989.04x = 166,477,339,161.50
  5. Step 5: Solve for x
    x = 166,477,339,161.50/470,989.04
  6. Step 6: Final answer
    x = 353,463.30

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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.