Home / 1,258,106.04-1,736,174.39-685,155.78

Finding the Fourth Proportional to 1,258,106.04, 1,736,174.39 and 685,155.78

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Solution

The fourth proportional to 1,258,106.04, 1,736,174.39 and 685,155.78 is: 945,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,106.04 : 1,736,174.39 = 685,155.78 : x
  2. Step 2: Convert to fraction form
    1,258,106.04/1,736,174.39 = 685,155.78/x
  3. Step 3: Cross multiply
    1,258,106.04x = 1,736,174.39 × 685,155.78
  4. Step 4: Simplify right side
    1,258,106.04x = 1,189,549,914,970.70
  5. Step 5: Solve for x
    x = 1,189,549,914,970.70/1,258,106.04
  6. Step 6: Final answer
    x = 945,508.47

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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.