Home / 434,619.60-651,929.40-329,643.60

Finding the Fourth Proportional to 434,619.60, 651,929.40 and 329,643.60

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Solution

The fourth proportional to 434,619.60, 651,929.40 and 329,643.60 is: 494,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,619.60 : 651,929.40 = 329,643.60 : x
  2. Step 2: Convert to fraction form
    434,619.60/651,929.40 = 329,643.60/x
  3. Step 3: Cross multiply
    434,619.60x = 651,929.40 × 329,643.60
  4. Step 4: Simplify right side
    434,619.60x = 214,904,354,361.84
  5. Step 5: Solve for x
    x = 214,904,354,361.84/434,619.60
  6. Step 6: Final answer
    x = 494,465.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.