Home / 598,632.20-898,385.70-421,485.20

Finding the Fourth Proportional to 598,632.20, 898,385.70 and 421,485.20

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Solution

The fourth proportional to 598,632.20, 898,385.70 and 421,485.20 is: 632,535.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,632.20 : 898,385.70 = 421,485.20 : x
  2. Step 2: Convert to fraction form
    598,632.20/898,385.70 = 421,485.20/x
  3. Step 3: Cross multiply
    598,632.20x = 898,385.70 × 421,485.20
  4. Step 4: Simplify right side
    598,632.20x = 378,656,276,441.64
  5. Step 5: Solve for x
    x = 378,656,276,441.64/598,632.20
  6. Step 6: Final answer
    x = 632,535.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.