Home / 1,286,483.92-1,929,740.96-387,933.50

Finding the Fourth Proportional to 1,286,483.92, 1,929,740.96 and 387,933.50

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Solution

The fourth proportional to 1,286,483.92, 1,929,740.96 and 387,933.50 is: 581,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,483.92 : 1,929,740.96 = 387,933.50 : x
  2. Step 2: Convert to fraction form
    1,286,483.92/1,929,740.96 = 387,933.50/x
  3. Step 3: Cross multiply
    1,286,483.92x = 1,929,740.96 × 387,933.50
  4. Step 4: Simplify right side
    1,286,483.92x = 748,611,170,500.35
  5. Step 5: Solve for x
    x = 748,611,170,500.35/1,286,483.92
  6. Step 6: Final answer
    x = 581,904.80

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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.