Home / 723,526.08-998,529.12-421,713.60

Finding the Fourth Proportional to 723,526.08, 998,529.12 and 421,713.60

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Solution

The fourth proportional to 723,526.08, 998,529.12 and 421,713.60 is: 582,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,526.08 : 998,529.12 = 421,713.60 : x
  2. Step 2: Convert to fraction form
    723,526.08/998,529.12 = 421,713.60/x
  3. Step 3: Cross multiply
    723,526.08x = 998,529.12 × 421,713.60
  4. Step 4: Simplify right side
    723,526.08x = 421,093,309,900.03
  5. Step 5: Solve for x
    x = 421,093,309,900.03/723,526.08
  6. Step 6: Final answer
    x = 582,001.56

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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.