Home / 1,383,569.98-1,909,321.64-771,722.26

Finding the Fourth Proportional to 1,383,569.98, 1,909,321.64 and 771,722.26

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Solution

The fourth proportional to 1,383,569.98, 1,909,321.64 and 771,722.26 is: 1,064,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,569.98 : 1,909,321.64 = 771,722.26 : x
  2. Step 2: Convert to fraction form
    1,383,569.98/1,909,321.64 = 771,722.26/x
  3. Step 3: Cross multiply
    1,383,569.98x = 1,909,321.64 × 771,722.26
  4. Step 4: Simplify right side
    1,383,569.98x = 1,473,466,011,087.71
  5. Step 5: Solve for x
    x = 1,473,466,011,087.71/1,383,569.98
  6. Step 6: Final answer
    x = 1,064,973.97

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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.