Home / 1,253,990.86-1,879,671.35-613,410.36

Finding the Fourth Proportional to 1,253,990.86, 1,879,671.35 and 613,410.36

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Solution

The fourth proportional to 1,253,990.86, 1,879,671.35 and 613,410.36 is: 919,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,990.86 : 1,879,671.35 = 613,410.36 : x
  2. Step 2: Convert to fraction form
    1,253,990.86/1,879,671.35 = 613,410.36/x
  3. Step 3: Cross multiply
    1,253,990.86x = 1,879,671.35 × 613,410.36
  4. Step 4: Simplify right side
    1,253,990.86x = 1,153,009,879,485.19
  5. Step 5: Solve for x
    x = 1,153,009,879,485.19/1,253,990.86
  6. Step 6: Final answer
    x = 919,472.32

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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.