Home / 664,082.45-916,429.50-377,602.51

Finding the Fourth Proportional to 664,082.45, 916,429.50 and 377,602.51

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Solution

The fourth proportional to 664,082.45, 916,429.50 and 377,602.51 is: 521,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,082.45 : 916,429.50 = 377,602.51 : x
  2. Step 2: Convert to fraction form
    664,082.45/916,429.50 = 377,602.51/x
  3. Step 3: Cross multiply
    664,082.45x = 916,429.50 × 377,602.51
  4. Step 4: Simplify right side
    664,082.45x = 346,046,079,438.05
  5. Step 5: Solve for x
    x = 346,046,079,438.05/664,082.45
  6. Step 6: Final answer
    x = 521,089.03

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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.