Home / 423,977.70-634,982.40-290,133.30

Finding the Fourth Proportional to 423,977.70, 634,982.40 and 290,133.30

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Solution

The fourth proportional to 423,977.70, 634,982.40 and 290,133.30 is: 434,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,977.70 : 634,982.40 = 290,133.30 : x
  2. Step 2: Convert to fraction form
    423,977.70/634,982.40 = 290,133.30/x
  3. Step 3: Cross multiply
    423,977.70x = 634,982.40 × 290,133.30
  4. Step 4: Simplify right side
    423,977.70x = 184,229,539,153.92
  5. Step 5: Solve for x
    x = 184,229,539,153.92/423,977.70
  6. Step 6: Final answer
    x = 434,526.48

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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.