Home / 1,242,356.74-1,863,480.91-389,408.93

Finding the Fourth Proportional to 1,242,356.74, 1,863,480.91 and 389,408.93

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Solution

The fourth proportional to 1,242,356.74, 1,863,480.91 and 389,408.93 is: 584,096.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,356.74 : 1,863,480.91 = 389,408.93 : x
  2. Step 2: Convert to fraction form
    1,242,356.74/1,863,480.91 = 389,408.93/x
  3. Step 3: Cross multiply
    1,242,356.74x = 1,863,480.91 × 389,408.93
  4. Step 4: Simplify right side
    1,242,356.74x = 725,656,110,923.71
  5. Step 5: Solve for x
    x = 725,656,110,923.71/1,242,356.74
  6. Step 6: Final answer
    x = 584,096.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.