Home / 748,220.45-1,032,712.41-489,947.39

Finding the Fourth Proportional to 748,220.45, 1,032,712.41 and 489,947.39

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Solution

The fourth proportional to 748,220.45, 1,032,712.41 and 489,947.39 is: 676,237.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,220.45 : 1,032,712.41 = 489,947.39 : x
  2. Step 2: Convert to fraction form
    748,220.45/1,032,712.41 = 489,947.39/x
  3. Step 3: Cross multiply
    748,220.45x = 1,032,712.41 × 489,947.39
  4. Step 4: Simplify right side
    748,220.45x = 505,974,742,286.81
  5. Step 5: Solve for x
    x = 505,974,742,286.81/748,220.45
  6. Step 6: Final answer
    x = 676,237.53

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Double scale
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1.5x scale

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.