Home / 459,819.60-689,729.40-223,623.60

Finding the Fourth Proportional to 459,819.60, 689,729.40 and 223,623.60

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Solution

The fourth proportional to 459,819.60, 689,729.40 and 223,623.60 is: 335,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,819.60 : 689,729.40 = 223,623.60 : x
  2. Step 2: Convert to fraction form
    459,819.60/689,729.40 = 223,623.60/x
  3. Step 3: Cross multiply
    459,819.60x = 689,729.40 × 223,623.60
  4. Step 4: Simplify right side
    459,819.60x = 154,239,771,453.84
  5. Step 5: Solve for x
    x = 154,239,771,453.84/459,819.60
  6. Step 6: Final answer
    x = 335,435.40

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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.