Home / 765,384.87-1,148,786.70-386,571.63

Finding the Fourth Proportional to 765,384.87, 1,148,786.70 and 386,571.63

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Solution

The fourth proportional to 765,384.87, 1,148,786.70 and 386,571.63 is: 580,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,384.87 : 1,148,786.70 = 386,571.63 : x
  2. Step 2: Convert to fraction form
    765,384.87/1,148,786.70 = 386,571.63/x
  3. Step 3: Cross multiply
    765,384.87x = 1,148,786.70 × 386,571.63
  4. Step 4: Simplify right side
    765,384.87x = 444,088,345,208.46
  5. Step 5: Solve for x
    x = 444,088,345,208.46/765,384.87
  6. Step 6: Final answer
    x = 580,215.74

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1.5x scale

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.