Home / 434,621.60-651,640.80-197,842.40

Finding the Fourth Proportional to 434,621.60, 651,640.80 and 197,842.40

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Solution

The fourth proportional to 434,621.60, 651,640.80 and 197,842.40 is: 296,630.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,621.60 : 651,640.80 = 197,842.40 : x
  2. Step 2: Convert to fraction form
    434,621.60/651,640.80 = 197,842.40/x
  3. Step 3: Cross multiply
    434,621.60x = 651,640.80 × 197,842.40
  4. Step 4: Simplify right side
    434,621.60x = 128,922,179,809.92
  5. Step 5: Solve for x
    x = 128,922,179,809.92/434,621.60
  6. Step 6: Final answer
    x = 296,630.86

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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.