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Finding the Fourth Proportional to 662,406.40, 993,739.20 and 283,326.40

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Solution

The fourth proportional to 662,406.40, 993,739.20 and 283,326.40 is: 425,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,406.40 : 993,739.20 = 283,326.40 : x
  2. Step 2: Convert to fraction form
    662,406.40/993,739.20 = 283,326.40/x
  3. Step 3: Cross multiply
    662,406.40x = 993,739.20 × 283,326.40
  4. Step 4: Simplify right side
    662,406.40x = 281,552,550,074.88
  5. Step 5: Solve for x
    x = 281,552,550,074.88/662,406.40
  6. Step 6: Final answer
    x = 425,045.03

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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.