Home / 490,826.74-677,461.18-300,000.10

Finding the Fourth Proportional to 490,826.74, 677,461.18 and 300,000.10

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Solution

The fourth proportional to 490,826.74, 677,461.18 and 300,000.10 is: 414,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,826.74 : 677,461.18 = 300,000.10 : x
  2. Step 2: Convert to fraction form
    490,826.74/677,461.18 = 300,000.10/x
  3. Step 3: Cross multiply
    490,826.74x = 677,461.18 × 300,000.10
  4. Step 4: Simplify right side
    490,826.74x = 203,238,419,302.47
  5. Step 5: Solve for x
    x = 203,238,419,302.47/490,826.74
  6. Step 6: Final answer
    x = 414,073.65

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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.