Home / 538,342.49-742,904.67-308,894.75

Finding the Fourth Proportional to 538,342.49, 742,904.67 and 308,894.75

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Solution

The fourth proportional to 538,342.49, 742,904.67 and 308,894.75 is: 426,270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,342.49 : 742,904.67 = 308,894.75 : x
  2. Step 2: Convert to fraction form
    538,342.49/742,904.67 = 308,894.75/x
  3. Step 3: Cross multiply
    538,342.49x = 742,904.67 × 308,894.75
  4. Step 4: Simplify right side
    538,342.49x = 229,479,348,598.96
  5. Step 5: Solve for x
    x = 229,479,348,598.96/538,342.49
  6. Step 6: Final answer
    x = 426,270.18

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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.