Home / 897,141.42-1,238,039.64-489,246.48

Finding the Fourth Proportional to 897,141.42, 1,238,039.64 and 489,246.48

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Solution

The fourth proportional to 897,141.42, 1,238,039.64 and 489,246.48 is: 675,151.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,141.42 : 1,238,039.64 = 489,246.48 : x
  2. Step 2: Convert to fraction form
    897,141.42/1,238,039.64 = 489,246.48/x
  3. Step 3: Cross multiply
    897,141.42x = 1,238,039.64 × 489,246.48
  4. Step 4: Simplify right side
    897,141.42x = 605,706,535,970.47
  5. Step 5: Solve for x
    x = 605,706,535,970.47/897,141.42
  6. Step 6: Final answer
    x = 675,151.68

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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.