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Finding the Fourth Proportional to 537,998.83, 742,409.96 and 308,544.26

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Solution

The fourth proportional to 537,998.83, 742,409.96 and 308,544.26 is: 425,774.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,998.83 : 742,409.96 = 308,544.26 : x
  2. Step 2: Convert to fraction form
    537,998.83/742,409.96 = 308,544.26/x
  3. Step 3: Cross multiply
    537,998.83x = 742,409.96 × 308,544.26
  4. Step 4: Simplify right side
    537,998.83x = 229,066,326,470.06
  5. Step 5: Solve for x
    x = 229,066,326,470.06/537,998.83
  6. Step 6: Final answer
    x = 425,774.77

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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.