Home / 722,538.40-997,090.48-400,241.72

Finding the Fourth Proportional to 722,538.40, 997,090.48 and 400,241.72

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Solution

The fourth proportional to 722,538.40, 997,090.48 and 400,241.72 is: 552,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,538.40 : 997,090.48 = 400,241.72 : x
  2. Step 2: Convert to fraction form
    722,538.40/997,090.48 = 400,241.72/x
  3. Step 3: Cross multiply
    722,538.40x = 997,090.48 × 400,241.72
  4. Step 4: Simplify right side
    722,538.40x = 399,077,208,710.83
  5. Step 5: Solve for x
    x = 399,077,208,710.83/722,538.40
  6. Step 6: Final answer
    x = 552,326.64

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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.