Home / 812,190.34-1,217,681.69-492,263.68

Finding the Fourth Proportional to 812,190.34, 1,217,681.69 and 492,263.68

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Solution

The fourth proportional to 812,190.34, 1,217,681.69 and 492,263.68 is: 738,029.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,190.34 : 1,217,681.69 = 492,263.68 : x
  2. Step 2: Convert to fraction form
    812,190.34/1,217,681.69 = 492,263.68/x
  3. Step 3: Cross multiply
    812,190.34x = 1,217,681.69 × 492,263.68
  4. Step 4: Simplify right side
    812,190.34x = 599,420,461,238.29
  5. Step 5: Solve for x
    x = 599,420,461,238.29/812,190.34
  6. Step 6: Final answer
    x = 738,029.54

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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.