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Finding the Fourth Proportional to 704,890.09, 972,749.31 and 382,600.25

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Solution

The fourth proportional to 704,890.09, 972,749.31 and 382,600.25 is: 527,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,890.09 : 972,749.31 = 382,600.25 : x
  2. Step 2: Convert to fraction form
    704,890.09/972,749.31 = 382,600.25/x
  3. Step 3: Cross multiply
    704,890.09x = 972,749.31 × 382,600.25
  4. Step 4: Simplify right side
    704,890.09x = 372,174,129,193.33
  5. Step 5: Solve for x
    x = 372,174,129,193.33/704,890.09
  6. Step 6: Final answer
    x = 527,988.88

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1.5x scale

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.