Home / 708,912.72-1,063,811.64-472,421.28

Finding the Fourth Proportional to 708,912.72, 1,063,811.64 and 472,421.28

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Solution

The fourth proportional to 708,912.72, 1,063,811.64 and 472,421.28 is: 708,926.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,912.72 : 1,063,811.64 = 472,421.28 : x
  2. Step 2: Convert to fraction form
    708,912.72/1,063,811.64 = 472,421.28/x
  3. Step 3: Cross multiply
    708,912.72x = 1,063,811.64 × 472,421.28
  4. Step 4: Simplify right side
    708,912.72x = 502,567,256,647.70
  5. Step 5: Solve for x
    x = 502,567,256,647.70/708,912.72
  6. Step 6: Final answer
    x = 708,926.84

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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.