Home / 537,720.21-742,063.24-308,314.84

Finding the Fourth Proportional to 537,720.21, 742,063.24 and 308,314.84

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Solution

The fourth proportional to 537,720.21, 742,063.24 and 308,314.84 is: 425,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,720.21 : 742,063.24 = 308,314.84 : x
  2. Step 2: Convert to fraction form
    537,720.21/742,063.24 = 308,314.84/x
  3. Step 3: Cross multiply
    537,720.21x = 742,063.24 × 308,314.84
  4. Step 4: Simplify right side
    537,720.21x = 228,789,109,110.48
  5. Step 5: Solve for x
    x = 228,789,109,110.48/537,720.21
  6. Step 6: Final answer
    x = 425,479.84

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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.