Home / 389,580.89-537,528.83-268,683.53

Finding the Fourth Proportional to 389,580.89, 537,528.83 and 268,683.53

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Solution

The fourth proportional to 389,580.89, 537,528.83 and 268,683.53 is: 370,719.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,580.89 : 537,528.83 = 268,683.53 : x
  2. Step 2: Convert to fraction form
    389,580.89/537,528.83 = 268,683.53/x
  3. Step 3: Cross multiply
    389,580.89x = 537,528.83 × 268,683.53
  4. Step 4: Simplify right side
    389,580.89x = 144,425,139,490.11
  5. Step 5: Solve for x
    x = 144,425,139,490.11/389,580.89
  6. Step 6: Final answer
    x = 370,719.27

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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.