Home / 469,374.72-647,567.04-308,316.48

Finding the Fourth Proportional to 469,374.72, 647,567.04 and 308,316.48

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Solution

The fourth proportional to 469,374.72, 647,567.04 and 308,316.48 is: 425,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,374.72 : 647,567.04 = 308,316.48 : x
  2. Step 2: Convert to fraction form
    469,374.72/647,567.04 = 308,316.48/x
  3. Step 3: Cross multiply
    469,374.72x = 647,567.04 × 308,316.48
  4. Step 4: Simplify right side
    469,374.72x = 199,655,590,336.82
  5. Step 5: Solve for x
    x = 199,655,590,336.82/469,374.72
  6. Step 6: Final answer
    x = 425,365.03

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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.