Home / 1,326,424.61-1,990,024.37-427,846.46

Finding the Fourth Proportional to 1,326,424.61, 1,990,024.37 and 427,846.46

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Solution

The fourth proportional to 1,326,424.61, 1,990,024.37 and 427,846.46 is: 641,894.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,424.61 : 1,990,024.37 = 427,846.46 : x
  2. Step 2: Convert to fraction form
    1,326,424.61/1,990,024.37 = 427,846.46/x
  3. Step 3: Cross multiply
    1,326,424.61x = 1,990,024.37 × 427,846.46
  4. Step 4: Simplify right side
    1,326,424.61x = 851,424,871,533.30
  5. Step 5: Solve for x
    x = 851,424,871,533.30/1,326,424.61
  6. Step 6: Final answer
    x = 641,894.66

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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.