Home / 2,993,139.40-4,490,365.20-971,039.20

Finding the Fourth Proportional to 2,993,139.40, 4,490,365.20 and 971,039.20

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Solution

The fourth proportional to 2,993,139.40, 4,490,365.20 and 971,039.20 is: 1,456,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993,139.40 : 4,490,365.20 = 971,039.20 : x
  2. Step 2: Convert to fraction form
    2,993,139.40/4,490,365.20 = 971,039.20/x
  3. Step 3: Cross multiply
    2,993,139.40x = 4,490,365.20 × 971,039.20
  4. Step 4: Simplify right side
    2,993,139.40x = 4,360,320,631,515.84
  5. Step 5: Solve for x
    x = 4,360,320,631,515.84/2,993,139.40
  6. Step 6: Final answer
    x = 1,456,771.65

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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.