Home / 1,386,522.45-2,079,783.68-389,250.45

Finding the Fourth Proportional to 1,386,522.45, 2,079,783.68 and 389,250.45

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Solution

The fourth proportional to 1,386,522.45, 2,079,783.68 and 389,250.45 is: 583,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,522.45 : 2,079,783.68 = 389,250.45 : x
  2. Step 2: Convert to fraction form
    1,386,522.45/2,079,783.68 = 389,250.45/x
  3. Step 3: Cross multiply
    1,386,522.45x = 2,079,783.68 × 389,250.45
  4. Step 4: Simplify right side
    1,386,522.45x = 809,556,731,396.40
  5. Step 5: Solve for x
    x = 809,556,731,396.40/1,386,522.45
  6. Step 6: Final answer
    x = 583,875.68

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1.5x scale

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.