Home / 778,596.47-1,074,259.78-456,133.22

Finding the Fourth Proportional to 778,596.47, 1,074,259.78 and 456,133.22

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Solution

The fourth proportional to 778,596.47, 1,074,259.78 and 456,133.22 is: 629,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,596.47 : 1,074,259.78 = 456,133.22 : x
  2. Step 2: Convert to fraction form
    778,596.47/1,074,259.78 = 456,133.22/x
  3. Step 3: Cross multiply
    778,596.47x = 1,074,259.78 × 456,133.22
  4. Step 4: Simplify right side
    778,596.47x = 490,005,567,196.59
  5. Step 5: Solve for x
    x = 490,005,567,196.59/778,596.47
  6. Step 6: Final answer
    x = 629,344.71

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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.