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Finding the Fourth Proportional to 1,201,308, 1,657,804.77 and 657,444.03

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Solution

The fourth proportional to 1,201,308, 1,657,804.77 and 657,444.03 is: 907,272.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,308 : 1,657,804.77 = 657,444.03 : x
  2. Step 2: Convert to fraction form
    1,201,308/1,657,804.77 = 657,444.03/x
  3. Step 3: Cross multiply
    1,201,308x = 1,657,804.77 × 657,444.03
  4. Step 4: Simplify right side
    1,201,308x = 1,089,913,848,942.02
  5. Step 5: Solve for x
    x = 1,089,913,848,942.02/1,201,308
  6. Step 6: Final answer
    x = 907,272.61

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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.