Home / 843,285.47-1,264,946.64-338,084.37

Finding the Fourth Proportional to 843,285.47, 1,264,946.64 and 338,084.37

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Solution

The fourth proportional to 843,285.47, 1,264,946.64 and 338,084.37 is: 507,133.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,285.47 : 1,264,946.64 = 338,084.37 : x
  2. Step 2: Convert to fraction form
    843,285.47/1,264,946.64 = 338,084.37/x
  3. Step 3: Cross multiply
    843,285.47x = 1,264,946.64 × 338,084.37
  4. Step 4: Simplify right side
    843,285.47x = 427,658,687,868.02
  5. Step 5: Solve for x
    x = 427,658,687,868.02/843,285.47
  6. Step 6: Final answer
    x = 507,133.95

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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.