Home / 502,091.10-692,629.52-320,612.22

Finding the Fourth Proportional to 502,091.10, 692,629.52 and 320,612.22

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Solution

The fourth proportional to 502,091.10, 692,629.52 and 320,612.22 is: 442,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,091.10 : 692,629.52 = 320,612.22 : x
  2. Step 2: Convert to fraction form
    502,091.10/692,629.52 = 320,612.22/x
  3. Step 3: Cross multiply
    502,091.10x = 692,629.52 × 320,612.22
  4. Step 4: Simplify right side
    502,091.10x = 222,065,486,441.67
  5. Step 5: Solve for x
    x = 222,065,486,441.67/502,091.10
  6. Step 6: Final answer
    x = 442,281.26

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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.