Home / 347,611.03-520,502.96-279,782.10

Finding the Fourth Proportional to 347,611.03, 520,502.96 and 279,782.10

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Solution

The fourth proportional to 347,611.03, 520,502.96 and 279,782.10 is: 418,937.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,611.03 : 520,502.96 = 279,782.10 : x
  2. Step 2: Convert to fraction form
    347,611.03/520,502.96 = 279,782.10/x
  3. Step 3: Cross multiply
    347,611.03x = 520,502.96 × 279,782.10
  4. Step 4: Simplify right side
    347,611.03x = 145,627,411,904.47
  5. Step 5: Solve for x
    x = 145,627,411,904.47/347,611.03
  6. Step 6: Final answer
    x = 418,937.84

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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.