Home / 1,312,893.81-1,969,341.18-414,426.42

Finding the Fourth Proportional to 1,312,893.81, 1,969,341.18 and 414,426.42

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Solution

The fourth proportional to 1,312,893.81, 1,969,341.18 and 414,426.42 is: 621,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,893.81 : 1,969,341.18 = 414,426.42 : x
  2. Step 2: Convert to fraction form
    1,312,893.81/1,969,341.18 = 414,426.42/x
  3. Step 3: Cross multiply
    1,312,893.81x = 1,969,341.18 × 414,426.42
  4. Step 4: Simplify right side
    1,312,893.81x = 816,147,014,985.98
  5. Step 5: Solve for x
    x = 816,147,014,985.98/1,312,893.81
  6. Step 6: Final answer
    x = 621,639.78

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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.