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Finding the Fourth Proportional to 628,969.22, 947,655.02 and 569,074.48

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Solution

The fourth proportional to 628,969.22, 947,655.02 and 569,074.48 is: 857,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,969.22 : 947,655.02 = 569,074.48 : x
  2. Step 2: Convert to fraction form
    628,969.22/947,655.02 = 569,074.48/x
  3. Step 3: Cross multiply
    628,969.22x = 947,655.02 × 569,074.48
  4. Step 4: Simplify right side
    628,969.22x = 539,286,286,779.44
  5. Step 5: Solve for x
    x = 539,286,286,779.44/628,969.22
  6. Step 6: Final answer
    x = 857,412.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.