Home / 729,126.98-1,006,251.69-402,504

Finding the Fourth Proportional to 729,126.98, 1,006,251.69 and 402,504

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Solution

The fourth proportional to 729,126.98, 1,006,251.69 and 402,504 is: 555,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,126.98 : 1,006,251.69 = 402,504 : x
  2. Step 2: Convert to fraction form
    729,126.98/1,006,251.69 = 402,504/x
  3. Step 3: Cross multiply
    729,126.98x = 1,006,251.69 × 402,504
  4. Step 4: Simplify right side
    729,126.98x = 405,020,330,231.76
  5. Step 5: Solve for x
    x = 405,020,330,231.76/729,126.98
  6. Step 6: Final answer
    x = 555,486.69

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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.