Home / 386,110.80-579,857.40-373,669.20

Finding the Fourth Proportional to 386,110.80, 579,857.40 and 373,669.20

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Solution

The fourth proportional to 386,110.80, 579,857.40 and 373,669.20 is: 561,172.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,110.80 : 579,857.40 = 373,669.20 : x
  2. Step 2: Convert to fraction form
    386,110.80/579,857.40 = 373,669.20/x
  3. Step 3: Cross multiply
    386,110.80x = 579,857.40 × 373,669.20
  4. Step 4: Simplify right side
    386,110.80x = 216,674,850,772.08
  5. Step 5: Solve for x
    x = 216,674,850,772.08/386,110.80
  6. Step 6: Final answer
    x = 561,172.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.