Home / 818,256.37-1,129,184.69-455,672.29

Finding the Fourth Proportional to 818,256.37, 1,129,184.69 and 455,672.29

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Solution

The fourth proportional to 818,256.37, 1,129,184.69 and 455,672.29 is: 628,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,256.37 : 1,129,184.69 = 455,672.29 : x
  2. Step 2: Convert to fraction form
    818,256.37/1,129,184.69 = 455,672.29/x
  3. Step 3: Cross multiply
    818,256.37x = 1,129,184.69 × 455,672.29
  4. Step 4: Simplify right side
    818,256.37x = 514,538,171,246.88
  5. Step 5: Solve for x
    x = 514,538,171,246.88/818,256.37
  6. Step 6: Final answer
    x = 628,822.69

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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.