Home / 519,821.37-780,043.10-477,519.93

Finding the Fourth Proportional to 519,821.37, 780,043.10 and 477,519.93

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Solution

The fourth proportional to 519,821.37, 780,043.10 and 477,519.93 is: 716,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,821.37 : 780,043.10 = 477,519.93 : x
  2. Step 2: Convert to fraction form
    519,821.37/780,043.10 = 477,519.93/x
  3. Step 3: Cross multiply
    519,821.37x = 780,043.10 × 477,519.93
  4. Step 4: Simplify right side
    519,821.37x = 372,486,124,121.38
  5. Step 5: Solve for x
    x = 372,486,124,121.38/519,821.37
  6. Step 6: Final answer
    x = 716,565.62

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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.