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Finding the Fourth Proportional to 448,047.60, 672,071.40 and 370,287.60

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Solution

The fourth proportional to 448,047.60, 672,071.40 and 370,287.60 is: 555,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,047.60 : 672,071.40 = 370,287.60 : x
  2. Step 2: Convert to fraction form
    448,047.60/672,071.40 = 370,287.60/x
  3. Step 3: Cross multiply
    448,047.60x = 672,071.40 × 370,287.60
  4. Step 4: Simplify right side
    448,047.60x = 248,859,705,734.64
  5. Step 5: Solve for x
    x = 248,859,705,734.64/448,047.60
  6. Step 6: Final answer
    x = 555,431.40

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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.