Home / 685,438.74-945,273.33-470,199.06

Finding the Fourth Proportional to 685,438.74, 945,273.33 and 470,199.06

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Solution

The fourth proportional to 685,438.74, 945,273.33 and 470,199.06 is: 648,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,438.74 : 945,273.33 = 470,199.06 : x
  2. Step 2: Convert to fraction form
    685,438.74/945,273.33 = 470,199.06/x
  3. Step 3: Cross multiply
    685,438.74x = 945,273.33 × 470,199.06
  4. Step 4: Simplify right side
    685,438.74x = 444,466,631,209.07
  5. Step 5: Solve for x
    x = 444,466,631,209.07/685,438.74
  6. Step 6: Final answer
    x = 648,441.07

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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.