Home / 537,719.21-742,061.86-308,313.84

Finding the Fourth Proportional to 537,719.21, 742,061.86 and 308,313.84

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Solution

The fourth proportional to 537,719.21, 742,061.86 and 308,313.84 is: 425,478.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,719.21 : 742,061.86 = 308,313.84 : x
  2. Step 2: Convert to fraction form
    537,719.21/742,061.86 = 308,313.84/x
  3. Step 3: Cross multiply
    537,719.21x = 742,061.86 × 308,313.84
  4. Step 4: Simplify right side
    537,719.21x = 228,787,943,586.09
  5. Step 5: Solve for x
    x = 228,787,943,586.09/537,719.21
  6. Step 6: Final answer
    x = 425,478.47

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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.