Home / 389,426.58-537,651.96-298,608.06

Finding the Fourth Proportional to 389,426.58, 537,651.96 and 298,608.06

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Solution

The fourth proportional to 389,426.58, 537,651.96 and 298,608.06 is: 412,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,426.58 : 537,651.96 = 298,608.06 : x
  2. Step 2: Convert to fraction form
    389,426.58/537,651.96 = 298,608.06/x
  3. Step 3: Cross multiply
    389,426.58x = 537,651.96 × 298,608.06
  4. Step 4: Simplify right side
    389,426.58x = 160,547,208,730.80
  5. Step 5: Solve for x
    x = 160,547,208,730.80/389,426.58
  6. Step 6: Final answer
    x = 412,265.67

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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.