Home / 818,325.77-1,129,245.08-450,731.36

Finding the Fourth Proportional to 818,325.77, 1,129,245.08 and 450,731.36

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Solution

The fourth proportional to 818,325.77, 1,129,245.08 and 450,731.36 is: 621,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,325.77 : 1,129,245.08 = 450,731.36 : x
  2. Step 2: Convert to fraction form
    818,325.77/1,129,245.08 = 450,731.36/x
  3. Step 3: Cross multiply
    818,325.77x = 1,129,245.08 × 450,731.36
  4. Step 4: Simplify right side
    818,325.77x = 508,986,173,786.53
  5. Step 5: Solve for x
    x = 508,986,173,786.53/818,325.77
  6. Step 6: Final answer
    x = 621,984.78

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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.