Home / 990,067.86-1,484,863.85-457,076.93

Finding the Fourth Proportional to 990,067.86, 1,484,863.85 and 457,076.93

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Solution

The fourth proportional to 990,067.86, 1,484,863.85 and 457,076.93 is: 685,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,067.86 : 1,484,863.85 = 457,076.93 : x
  2. Step 2: Convert to fraction form
    990,067.86/1,484,863.85 = 457,076.93/x
  3. Step 3: Cross multiply
    990,067.86x = 1,484,863.85 × 457,076.93
  4. Step 4: Simplify right side
    990,067.86x = 678,697,003,744.35
  5. Step 5: Solve for x
    x = 678,697,003,744.35/990,067.86
  6. Step 6: Final answer
    x = 685,505.54

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1.5x scale

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.