Home / 579,811.52-799,903.67-388,886.42

Finding the Fourth Proportional to 579,811.52, 799,903.67 and 388,886.42

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Solution

The fourth proportional to 579,811.52, 799,903.67 and 388,886.42 is: 536,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,811.52 : 799,903.67 = 388,886.42 : x
  2. Step 2: Convert to fraction form
    579,811.52/799,903.67 = 388,886.42/x
  3. Step 3: Cross multiply
    579,811.52x = 799,903.67 × 388,886.42
  4. Step 4: Simplify right side
    579,811.52x = 311,071,668,627.21
  5. Step 5: Solve for x
    x = 311,071,668,627.21/579,811.52
  6. Step 6: Final answer
    x = 536,504.81

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1.5x scale

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.