Home / 516,457.05-774,730.20-142,480.05

Finding the Fourth Proportional to 516,457.05, 774,730.20 and 142,480.05

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Solution

The fourth proportional to 516,457.05, 774,730.20 and 142,480.05 is: 213,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,457.05 : 774,730.20 = 142,480.05 : x
  2. Step 2: Convert to fraction form
    516,457.05/774,730.20 = 142,480.05/x
  3. Step 3: Cross multiply
    516,457.05x = 774,730.20 × 142,480.05
  4. Step 4: Simplify right side
    516,457.05x = 110,383,597,632.51
  5. Step 5: Solve for x
    x = 110,383,597,632.51/516,457.05
  6. Step 6: Final answer
    x = 213,732.39

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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.