Home / 724,222.20-1,087,499.70-488,609.40

Finding the Fourth Proportional to 724,222.20, 1,087,499.70 and 488,609.40

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Solution

The fourth proportional to 724,222.20, 1,087,499.70 and 488,609.40 is: 733,701.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,222.20 : 1,087,499.70 = 488,609.40 : x
  2. Step 2: Convert to fraction form
    724,222.20/1,087,499.70 = 488,609.40/x
  3. Step 3: Cross multiply
    724,222.20x = 1,087,499.70 × 488,609.40
  4. Step 4: Simplify right side
    724,222.20x = 531,362,575,917.18
  5. Step 5: Solve for x
    x = 531,362,575,917.18/724,222.20
  6. Step 6: Final answer
    x = 733,701.03

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1.5x scale

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.