Home / 386,880.15-579,828.15-344,561.70

Finding the Fourth Proportional to 386,880.15, 579,828.15 and 344,561.70

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Solution

The fourth proportional to 386,880.15, 579,828.15 and 344,561.70 is: 516,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,880.15 : 579,828.15 = 344,561.70 : x
  2. Step 2: Convert to fraction form
    386,880.15/579,828.15 = 344,561.70/x
  3. Step 3: Cross multiply
    386,880.15x = 579,828.15 × 344,561.70
  4. Step 4: Simplify right side
    386,880.15x = 199,786,573,071.86
  5. Step 5: Solve for x
    x = 199,786,573,071.86/386,880.15
  6. Step 6: Final answer
    x = 516,404.30

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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.