Home / 1,990,690.50-2,985,550.38-551,336.50

Finding the Fourth Proportional to 1,990,690.50, 2,985,550.38 and 551,336.50

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Solution

The fourth proportional to 1,990,690.50, 2,985,550.38 and 551,336.50 is: 826,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,690.50 : 2,985,550.38 = 551,336.50 : x
  2. Step 2: Convert to fraction form
    1,990,690.50/2,985,550.38 = 551,336.50/x
  3. Step 3: Cross multiply
    1,990,690.50x = 2,985,550.38 × 551,336.50
  4. Step 4: Simplify right side
    1,990,690.50x = 1,646,042,900,814.81
  5. Step 5: Solve for x
    x = 1,646,042,900,814.81/1,990,690.50
  6. Step 6: Final answer
    x = 826,870.32

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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.