Home / 1,227,010.19-1,840,613.69-428,274.05

Finding the Fourth Proportional to 1,227,010.19, 1,840,613.69 and 428,274.05

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Solution

The fourth proportional to 1,227,010.19, 1,840,613.69 and 428,274.05 is: 642,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,010.19 : 1,840,613.69 = 428,274.05 : x
  2. Step 2: Convert to fraction form
    1,227,010.19/1,840,613.69 = 428,274.05/x
  3. Step 3: Cross multiply
    1,227,010.19x = 1,840,613.69 × 428,274.05
  4. Step 4: Simplify right side
    1,227,010.19x = 788,287,071,369.36
  5. Step 5: Solve for x
    x = 788,287,071,369.36/1,227,010.19
  6. Step 6: Final answer
    x = 642,445.42

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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.