Home / 980,514.72-1,352,900.40-572,431.68

Finding the Fourth Proportional to 980,514.72, 1,352,900.40 and 572,431.68

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Solution

The fourth proportional to 980,514.72, 1,352,900.40 and 572,431.68 is: 789,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,514.72 : 1,352,900.40 = 572,431.68 : x
  2. Step 2: Convert to fraction form
    980,514.72/1,352,900.40 = 572,431.68/x
  3. Step 3: Cross multiply
    980,514.72x = 1,352,900.40 × 572,431.68
  4. Step 4: Simplify right side
    980,514.72x = 774,443,048,844.67
  5. Step 5: Solve for x
    x = 774,443,048,844.67/980,514.72
  6. Step 6: Final answer
    x = 789,833.17

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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.