Home / 853,896.62-1,280,798.76-433,161.56

Finding the Fourth Proportional to 853,896.62, 1,280,798.76 and 433,161.56

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Solution

The fourth proportional to 853,896.62, 1,280,798.76 and 433,161.56 is: 649,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,896.62 : 1,280,798.76 = 433,161.56 : x
  2. Step 2: Convert to fraction form
    853,896.62/1,280,798.76 = 433,161.56/x
  3. Step 3: Cross multiply
    853,896.62x = 1,280,798.76 × 433,161.56
  4. Step 4: Simplify right side
    853,896.62x = 554,792,788,927.67
  5. Step 5: Solve for x
    x = 554,792,788,927.67/853,896.62
  6. Step 6: Final answer
    x = 649,718.92

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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.