Home / 507,220.03-699,984.75-280,865.53

Finding the Fourth Proportional to 507,220.03, 699,984.75 and 280,865.53

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Solution

The fourth proportional to 507,220.03, 699,984.75 and 280,865.53 is: 387,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,220.03 : 699,984.75 = 280,865.53 : x
  2. Step 2: Convert to fraction form
    507,220.03/699,984.75 = 280,865.53/x
  3. Step 3: Cross multiply
    507,220.03x = 699,984.75 × 280,865.53
  4. Step 4: Simplify right side
    507,220.03x = 196,601,587,800.67
  5. Step 5: Solve for x
    x = 196,601,587,800.67/507,220.03
  6. Step 6: Final answer
    x = 387,606.12

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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.