Home / 896,938-1,237,784.12-489,036.52

Finding the Fourth Proportional to 896,938, 1,237,784.12 and 489,036.52

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Solution

The fourth proportional to 896,938, 1,237,784.12 and 489,036.52 is: 674,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,938 : 1,237,784.12 = 489,036.52 : x
  2. Step 2: Convert to fraction form
    896,938/1,237,784.12 = 489,036.52/x
  3. Step 3: Cross multiply
    896,938x = 1,237,784.12 × 489,036.52
  4. Step 4: Simplify right side
    896,938x = 605,321,638,556.06
  5. Step 5: Solve for x
    x = 605,321,638,556.06/896,938
  6. Step 6: Final answer
    x = 674,875.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.