Home / 2,004,985.40-3,006,277.07-638,168.72

Finding the Fourth Proportional to 2,004,985.40, 3,006,277.07 and 638,168.72

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Solution

The fourth proportional to 2,004,985.40, 3,006,277.07 and 638,168.72 is: 956,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004,985.40 : 3,006,277.07 = 638,168.72 : x
  2. Step 2: Convert to fraction form
    2,004,985.40/3,006,277.07 = 638,168.72/x
  3. Step 3: Cross multiply
    2,004,985.40x = 3,006,277.07 × 638,168.72
  4. Step 4: Simplify right side
    2,004,985.40x = 1,918,511,971,505.02
  5. Step 5: Solve for x
    x = 1,918,511,971,505.02/2,004,985.40
  6. Step 6: Final answer
    x = 956,870.80

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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.