Home / 1,139,790.66-1,572,757.08-649,823.38

Finding the Fourth Proportional to 1,139,790.66, 1,572,757.08 and 649,823.38

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Solution

The fourth proportional to 1,139,790.66, 1,572,757.08 and 649,823.38 is: 896,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,790.66 : 1,572,757.08 = 649,823.38 : x
  2. Step 2: Convert to fraction form
    1,139,790.66/1,572,757.08 = 649,823.38/x
  3. Step 3: Cross multiply
    1,139,790.66x = 1,572,757.08 × 649,823.38
  4. Step 4: Simplify right side
    1,139,790.66x = 1,022,014,321,644.53
  5. Step 5: Solve for x
    x = 1,022,014,321,644.53/1,139,790.66
  6. Step 6: Final answer
    x = 896,668.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.