Home / 470,631.79-649,476.87-255,771.85

Finding the Fourth Proportional to 470,631.79, 649,476.87 and 255,771.85

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Solution

The fourth proportional to 470,631.79, 649,476.87 and 255,771.85 is: 352,967.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,631.79 : 649,476.87 = 255,771.85 : x
  2. Step 2: Convert to fraction form
    470,631.79/649,476.87 = 255,771.85/x
  3. Step 3: Cross multiply
    470,631.79x = 649,476.87 × 255,771.85
  4. Step 4: Simplify right side
    470,631.79x = 166,117,900,572.11
  5. Step 5: Solve for x
    x = 166,117,900,572.11/470,631.79
  6. Step 6: Final answer
    x = 352,967.87

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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.