Home / 1,318,861.01-1,975,191.36-642,823.74

Finding the Fourth Proportional to 1,318,861.01, 1,975,191.36 and 642,823.74

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Solution

The fourth proportional to 1,318,861.01, 1,975,191.36 and 642,823.74 is: 962,724.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,861.01 : 1,975,191.36 = 642,823.74 : x
  2. Step 2: Convert to fraction form
    1,318,861.01/1,975,191.36 = 642,823.74/x
  3. Step 3: Cross multiply
    1,318,861.01x = 1,975,191.36 × 642,823.74
  4. Step 4: Simplify right side
    1,318,861.01x = 1,269,699,897,250.89
  5. Step 5: Solve for x
    x = 1,269,699,897,250.89/1,318,861.01
  6. Step 6: Final answer
    x = 962,724.57

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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.