Home / 813,216.68-1,122,245.65-450,646.58

Finding the Fourth Proportional to 813,216.68, 1,122,245.65 and 450,646.58

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Solution

The fourth proportional to 813,216.68, 1,122,245.65 and 450,646.58 is: 621,895.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,216.68 : 1,122,245.65 = 450,646.58 : x
  2. Step 2: Convert to fraction form
    813,216.68/1,122,245.65 = 450,646.58/x
  3. Step 3: Cross multiply
    813,216.68x = 1,122,245.65 × 450,646.58
  4. Step 4: Simplify right side
    813,216.68x = 505,736,167,461.30
  5. Step 5: Solve for x
    x = 505,736,167,461.30/813,216.68
  6. Step 6: Final answer
    x = 621,895.96

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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.