Home / 765,384.37-1,148,785.94-386,571.13

Finding the Fourth Proportional to 765,384.37, 1,148,785.94 and 386,571.13

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Solution

The fourth proportional to 765,384.37, 1,148,785.94 and 386,571.13 is: 580,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,384.37 : 1,148,785.94 = 386,571.13 : x
  2. Step 2: Convert to fraction form
    765,384.37/1,148,785.94 = 386,571.13/x
  3. Step 3: Cross multiply
    765,384.37x = 1,148,785.94 × 386,571.13
  4. Step 4: Simplify right side
    765,384.37x = 444,087,477,048.38
  5. Step 5: Solve for x
    x = 444,087,477,048.38/765,384.37
  6. Step 6: Final answer
    x = 580,214.98

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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.