Home / 470,131.20-705,196.80-399,272.40

Finding the Fourth Proportional to 470,131.20, 705,196.80 and 399,272.40

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Solution

The fourth proportional to 470,131.20, 705,196.80 and 399,272.40 is: 598,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,131.20 : 705,196.80 = 399,272.40 : x
  2. Step 2: Convert to fraction form
    470,131.20/705,196.80 = 399,272.40/x
  3. Step 3: Cross multiply
    470,131.20x = 705,196.80 × 399,272.40
  4. Step 4: Simplify right side
    470,131.20x = 281,565,618,808.32
  5. Step 5: Solve for x
    x = 281,565,618,808.32/470,131.20
  6. Step 6: Final answer
    x = 598,908.60

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Similar ratio
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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.