Home / 537,989.79-742,428.14-308,555.94

Finding the Fourth Proportional to 537,989.79, 742,428.14 and 308,555.94

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Solution

The fourth proportional to 537,989.79, 742,428.14 and 308,555.94 is: 425,808.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,989.79 : 742,428.14 = 308,555.94 : x
  2. Step 2: Convert to fraction form
    537,989.79/742,428.14 = 308,555.94/x
  3. Step 3: Cross multiply
    537,989.79x = 742,428.14 × 308,555.94
  4. Step 4: Simplify right side
    537,989.79x = 229,080,611,077.37
  5. Step 5: Solve for x
    x = 229,080,611,077.37/537,989.79
  6. Step 6: Final answer
    x = 425,808.47

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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.