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Finding the Fourth Proportional to 504,554.88, 696,407.04 and 303,312

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Solution

The fourth proportional to 504,554.88, 696,407.04 and 303,312 is: 418,643.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,554.88 : 696,407.04 = 303,312 : x
  2. Step 2: Convert to fraction form
    504,554.88/696,407.04 = 303,312/x
  3. Step 3: Cross multiply
    504,554.88x = 696,407.04 × 303,312
  4. Step 4: Simplify right side
    504,554.88x = 211,228,612,116.48
  5. Step 5: Solve for x
    x = 211,228,612,116.48/504,554.88
  6. Step 6: Final answer
    x = 418,643.48

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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.