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Finding the Fourth Proportional to 708,687.72, 977,194.53 and 579,224.43

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Solution

The fourth proportional to 708,687.72, 977,194.53 and 579,224.43 is: 798,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,687.72 : 977,194.53 = 579,224.43 : x
  2. Step 2: Convert to fraction form
    708,687.72/977,194.53 = 579,224.43/x
  3. Step 3: Cross multiply
    708,687.72x = 977,194.53 × 579,224.43
  4. Step 4: Simplify right side
    708,687.72x = 566,014,944,638.37
  5. Step 5: Solve for x
    x = 566,014,944,638.37/708,687.72
  6. Step 6: Final answer
    x = 798,680.33

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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.