Home / 708,121.78-977,195.73-385,834.53

Finding the Fourth Proportional to 708,121.78, 977,195.73 and 385,834.53

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Solution

The fourth proportional to 708,121.78, 977,195.73 and 385,834.53 is: 532,444.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,121.78 : 977,195.73 = 385,834.53 : x
  2. Step 2: Convert to fraction form
    708,121.78/977,195.73 = 385,834.53/x
  3. Step 3: Cross multiply
    708,121.78x = 977,195.73 × 385,834.53
  4. Step 4: Simplify right side
    708,121.78x = 377,035,855,202.56
  5. Step 5: Solve for x
    x = 377,035,855,202.56/708,121.78
  6. Step 6: Final answer
    x = 532,444.94

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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.