Home / 388,822.68-581,848.20-268,903.98

Finding the Fourth Proportional to 388,822.68, 581,848.20 and 268,903.98

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Solution

The fourth proportional to 388,822.68, 581,848.20 and 268,903.98 is: 402,397.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,822.68 : 581,848.20 = 268,903.98 : x
  2. Step 2: Convert to fraction form
    388,822.68/581,848.20 = 268,903.98/x
  3. Step 3: Cross multiply
    388,822.68x = 581,848.20 × 268,903.98
  4. Step 4: Simplify right side
    388,822.68x = 156,461,296,735.84
  5. Step 5: Solve for x
    x = 156,461,296,735.84/388,822.68
  6. Step 6: Final answer
    x = 402,397.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.