Home / 1,415,977.80-1,954,039.68-771,398.52

Finding the Fourth Proportional to 1,415,977.80, 1,954,039.68 and 771,398.52

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Solution

The fourth proportional to 1,415,977.80, 1,954,039.68 and 771,398.52 is: 1,064,524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,977.80 : 1,954,039.68 = 771,398.52 : x
  2. Step 2: Convert to fraction form
    1,415,977.80/1,954,039.68 = 771,398.52/x
  3. Step 3: Cross multiply
    1,415,977.80x = 1,954,039.68 × 771,398.52
  4. Step 4: Simplify right side
    1,415,977.80x = 1,507,343,317,173.27
  5. Step 5: Solve for x
    x = 1,507,343,317,173.27/1,415,977.80
  6. Step 6: Final answer
    x = 1,064,524.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.