Home / 628,533.50-867,224.96-370,420.73

Finding the Fourth Proportional to 628,533.50, 867,224.96 and 370,420.73

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Solution

The fourth proportional to 628,533.50, 867,224.96 and 370,420.73 is: 511,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,533.50 : 867,224.96 = 370,420.73 : x
  2. Step 2: Convert to fraction form
    628,533.50/867,224.96 = 370,420.73/x
  3. Step 3: Cross multiply
    628,533.50x = 867,224.96 × 370,420.73
  4. Step 4: Simplify right side
    628,533.50x = 321,238,098,421.30
  5. Step 5: Solve for x
    x = 321,238,098,421.30/628,533.50
  6. Step 6: Final answer
    x = 511,091.45

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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.