Home / 700,015.12-1,050,908.85-429,478.43

Finding the Fourth Proportional to 700,015.12, 1,050,908.85 and 429,478.43

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Solution

The fourth proportional to 700,015.12, 1,050,908.85 and 429,478.43 is: 644,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,015.12 : 1,050,908.85 = 429,478.43 : x
  2. Step 2: Convert to fraction form
    700,015.12/1,050,908.85 = 429,478.43/x
  3. Step 3: Cross multiply
    700,015.12x = 1,050,908.85 × 429,478.43
  4. Step 4: Simplify right side
    700,015.12x = 451,342,682,971.11
  5. Step 5: Solve for x
    x = 451,342,682,971.11/700,015.12
  6. Step 6: Final answer
    x = 644,761.34

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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.