Home / 1,383,573.47-1,909,326.48-771,725.75

Finding the Fourth Proportional to 1,383,573.47, 1,909,326.48 and 771,725.75

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Solution

The fourth proportional to 1,383,573.47, 1,909,326.48 and 771,725.75 is: 1,064,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,573.47 : 1,909,326.48 = 771,725.75 : x
  2. Step 2: Convert to fraction form
    1,383,573.47/1,909,326.48 = 771,725.75/x
  3. Step 3: Cross multiply
    1,383,573.47x = 1,909,326.48 × 771,725.75
  4. Step 4: Simplify right side
    1,383,573.47x = 1,473,476,409,772.86
  5. Step 5: Solve for x
    x = 1,473,476,409,772.86/1,383,573.47
  6. Step 6: Final answer
    x = 1,064,978.80

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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.