Home / 1,205,838.36-1,807,381.58-485,718.90

Finding the Fourth Proportional to 1,205,838.36, 1,807,381.58 and 485,718.90

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Solution

The fourth proportional to 1,205,838.36, 1,807,381.58 and 485,718.90 is: 728,024.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,838.36 : 1,807,381.58 = 485,718.90 : x
  2. Step 2: Convert to fraction form
    1,205,838.36/1,807,381.58 = 485,718.90/x
  3. Step 3: Cross multiply
    1,205,838.36x = 1,807,381.58 × 485,718.90
  4. Step 4: Simplify right side
    1,205,838.36x = 877,879,392,917.86
  5. Step 5: Solve for x
    x = 877,879,392,917.86/1,205,838.36
  6. Step 6: Final answer
    x = 728,024.11

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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.