Home / 727,905.80-1,091,567.10-254,347.40

Finding the Fourth Proportional to 727,905.80, 1,091,567.10 and 254,347.40

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Solution

The fourth proportional to 727,905.80, 1,091,567.10 and 254,347.40 is: 381,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,905.80 : 1,091,567.10 = 254,347.40 : x
  2. Step 2: Convert to fraction form
    727,905.80/1,091,567.10 = 254,347.40/x
  3. Step 3: Cross multiply
    727,905.80x = 1,091,567.10 × 254,347.40
  4. Step 4: Simplify right side
    727,905.80x = 277,637,253,810.54
  5. Step 5: Solve for x
    x = 277,637,253,810.54/727,905.80
  6. Step 6: Final answer
    x = 381,419.21

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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.