Home / 450,381.26-620,811.52-354,736.46

Finding the Fourth Proportional to 450,381.26, 620,811.52 and 354,736.46

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Solution

The fourth proportional to 450,381.26, 620,811.52 and 354,736.46 is: 488,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,381.26 : 620,811.52 = 354,736.46 : x
  2. Step 2: Convert to fraction form
    450,381.26/620,811.52 = 354,736.46/x
  3. Step 3: Cross multiply
    450,381.26x = 620,811.52 × 354,736.46
  4. Step 4: Simplify right side
    450,381.26x = 220,224,476,941.12
  5. Step 5: Solve for x
    x = 220,224,476,941.12/450,381.26
  6. Step 6: Final answer
    x = 488,973.45

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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.