Home / 1,224,440-1,689,725.44-680,626.36

Finding the Fourth Proportional to 1,224,440, 1,689,725.44 and 680,626.36

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Solution

The fourth proportional to 1,224,440, 1,689,725.44 and 680,626.36 is: 939,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,440 : 1,689,725.44 = 680,626.36 : x
  2. Step 2: Convert to fraction form
    1,224,440/1,689,725.44 = 680,626.36/x
  3. Step 3: Cross multiply
    1,224,440x = 1,689,725.44 × 680,626.36
  4. Step 4: Simplify right side
    1,224,440x = 1,150,071,675,626.60
  5. Step 5: Solve for x
    x = 1,150,071,675,626.60/1,224,440
  6. Step 6: Final answer
    x = 939,263.40

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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.