Home / 389,736.86-537,415.38-338,308.88

Finding the Fourth Proportional to 389,736.86, 537,415.38 and 338,308.88

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Solution

The fourth proportional to 389,736.86, 537,415.38 and 338,308.88 is: 466,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,736.86 : 537,415.38 = 338,308.88 : x
  2. Step 2: Convert to fraction form
    389,736.86/537,415.38 = 338,308.88/x
  3. Step 3: Cross multiply
    389,736.86x = 537,415.38 × 338,308.88
  4. Step 4: Simplify right side
    389,736.86x = 181,812,395,302.57
  5. Step 5: Solve for x
    x = 181,812,395,302.57/389,736.86
  6. Step 6: Final answer
    x = 466,500.39

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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.