Home / 420,526.72-629,973.06-373,404.16

Finding the Fourth Proportional to 420,526.72, 629,973.06 and 373,404.16

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Solution

The fourth proportional to 420,526.72, 629,973.06 and 373,404.16 is: 559,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,526.72 : 629,973.06 = 373,404.16 : x
  2. Step 2: Convert to fraction form
    420,526.72/629,973.06 = 373,404.16/x
  3. Step 3: Cross multiply
    420,526.72x = 629,973.06 × 373,404.16
  4. Step 4: Simplify right side
    420,526.72x = 235,234,561,291.93
  5. Step 5: Solve for x
    x = 235,234,561,291.93/420,526.72
  6. Step 6: Final answer
    x = 559,380.77

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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.