Home / 2,696,618.40-4,039,678.80-1,628,487.60

Finding the Fourth Proportional to 2,696,618.40, 4,039,678.80 and 1,628,487.60

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Solution

The fourth proportional to 2,696,618.40, 4,039,678.80 and 1,628,487.60 is: 2,439,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696,618.40 : 4,039,678.80 = 1,628,487.60 : x
  2. Step 2: Convert to fraction form
    2,696,618.40/4,039,678.80 = 1,628,487.60/x
  3. Step 3: Cross multiply
    2,696,618.40x = 4,039,678.80 × 1,628,487.60
  4. Step 4: Simplify right side
    2,696,618.40x = 6,578,566,833,782.88
  5. Step 5: Solve for x
    x = 6,578,566,833,782.88/2,696,618.40
  6. Step 6: Final answer
    x = 2,439,561.65

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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.