Home / 663,811.44-916,051.37-377,312.82

Finding the Fourth Proportional to 663,811.44, 916,051.37 and 377,312.82

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Solution

The fourth proportional to 663,811.44, 916,051.37 and 377,312.82 is: 520,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,811.44 : 916,051.37 = 377,312.82 : x
  2. Step 2: Convert to fraction form
    663,811.44/916,051.37 = 377,312.82/x
  3. Step 3: Cross multiply
    663,811.44x = 916,051.37 × 377,312.82
  4. Step 4: Simplify right side
    663,811.44x = 345,637,925,679.56
  5. Step 5: Solve for x
    x = 345,637,925,679.56/663,811.44
  6. Step 6: Final answer
    x = 520,686.91

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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.