Home / 708,286.73-977,407.20-385,989.84

Finding the Fourth Proportional to 708,286.73, 977,407.20 and 385,989.84

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Solution

The fourth proportional to 708,286.73, 977,407.20 and 385,989.84 is: 532,650.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,286.73 : 977,407.20 = 385,989.84 : x
  2. Step 2: Convert to fraction form
    708,286.73/977,407.20 = 385,989.84/x
  3. Step 3: Cross multiply
    708,286.73x = 977,407.20 × 385,989.84
  4. Step 4: Simplify right side
    708,286.73x = 377,269,248,742.85
  5. Step 5: Solve for x
    x = 377,269,248,742.85/708,286.73
  6. Step 6: Final answer
    x = 532,650.46

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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.