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Finding the Fourth Proportional to 388,538.27, 579,957.81 and 360,044.19

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Solution

The fourth proportional to 388,538.27, 579,957.81 and 360,044.19 is: 537,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,538.27 : 579,957.81 = 360,044.19 : x
  2. Step 2: Convert to fraction form
    388,538.27/579,957.81 = 360,044.19/x
  3. Step 3: Cross multiply
    388,538.27x = 579,957.81 × 360,044.19
  4. Step 4: Simplify right side
    388,538.27x = 208,810,438,585.46
  5. Step 5: Solve for x
    x = 208,810,438,585.46/388,538.27
  6. Step 6: Final answer
    x = 537,425.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.