Home / 1,971,201.40-2,956,218.90-772,433.80

Finding the Fourth Proportional to 1,971,201.40, 2,956,218.90 and 772,433.80

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Solution

The fourth proportional to 1,971,201.40, 2,956,218.90 and 772,433.80 is: 1,158,422.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,201.40 : 2,956,218.90 = 772,433.80 : x
  2. Step 2: Convert to fraction form
    1,971,201.40/2,956,218.90 = 772,433.80/x
  3. Step 3: Cross multiply
    1,971,201.40x = 2,956,218.90 × 772,433.80
  4. Step 4: Simplify right side
    1,971,201.40x = 2,283,483,398,558.82
  5. Step 5: Solve for x
    x = 2,283,483,398,558.82/1,971,201.40
  6. Step 6: Final answer
    x = 1,158,422.17

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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.