Home / 470,346.40-649,226.10-300,580.66

Finding the Fourth Proportional to 470,346.40, 649,226.10 and 300,580.66

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Solution

The fourth proportional to 470,346.40, 649,226.10 and 300,580.66 is: 414,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,346.40 : 649,226.10 = 300,580.66 : x
  2. Step 2: Convert to fraction form
    470,346.40/649,226.10 = 300,580.66/x
  3. Step 3: Cross multiply
    470,346.40x = 649,226.10 × 300,580.66
  4. Step 4: Simplify right side
    470,346.40x = 195,144,809,627.23
  5. Step 5: Solve for x
    x = 195,144,809,627.23/470,346.40
  6. Step 6: Final answer
    x = 414,895.94

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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.