Home / 1,020,924.72-1,531,387.26-421,227

Finding the Fourth Proportional to 1,020,924.72, 1,531,387.26 and 421,227

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Solution

The fourth proportional to 1,020,924.72, 1,531,387.26 and 421,227 is: 631,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,924.72 : 1,531,387.26 = 421,227 : x
  2. Step 2: Convert to fraction form
    1,020,924.72/1,531,387.26 = 421,227/x
  3. Step 3: Cross multiply
    1,020,924.72x = 1,531,387.26 × 421,227
  4. Step 4: Simplify right side
    1,020,924.72x = 645,061,661,368.02
  5. Step 5: Solve for x
    x = 645,061,661,368.02/1,020,924.72
  6. Step 6: Final answer
    x = 631,840.57

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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.