Home / 1,383,263.22-1,908,899.49-771,416.64

Finding the Fourth Proportional to 1,383,263.22, 1,908,899.49 and 771,416.64

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Solution

The fourth proportional to 1,383,263.22, 1,908,899.49 and 771,416.64 is: 1,064,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,263.22 : 1,908,899.49 = 771,416.64 : x
  2. Step 2: Convert to fraction form
    1,383,263.22/1,908,899.49 = 771,416.64/x
  3. Step 3: Cross multiply
    1,383,263.22x = 1,908,899.49 × 771,416.64
  4. Step 4: Simplify right side
    1,383,263.22x = 1,472,556,821,688.72
  5. Step 5: Solve for x
    x = 1,472,556,821,688.72/1,383,263.22
  6. Step 6: Final answer
    x = 1,064,552.86

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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.