Home / 538,273.23-742,924.64-308,985.54

Finding the Fourth Proportional to 538,273.23, 742,924.64 and 308,985.54

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Solution

The fourth proportional to 538,273.23, 742,924.64 and 308,985.54 is: 426,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,273.23 : 742,924.64 = 308,985.54 : x
  2. Step 2: Convert to fraction form
    538,273.23/742,924.64 = 308,985.54/x
  3. Step 3: Cross multiply
    538,273.23x = 742,924.64 × 308,985.54
  4. Step 4: Simplify right side
    538,273.23x = 229,552,969,056.20
  5. Step 5: Solve for x
    x = 229,552,969,056.20/538,273.23
  6. Step 6: Final answer
    x = 426,461.80

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1.5x scale

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.