Home / 1,292,278.72-1,938,418.56-581,476.48

Finding the Fourth Proportional to 1,292,278.72, 1,938,418.56 and 581,476.48

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Solution

The fourth proportional to 1,292,278.72, 1,938,418.56 and 581,476.48 is: 872,214.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,278.72 : 1,938,418.56 = 581,476.48 : x
  2. Step 2: Convert to fraction form
    1,292,278.72/1,938,418.56 = 581,476.48/x
  3. Step 3: Cross multiply
    1,292,278.72x = 1,938,418.56 × 581,476.48
  4. Step 4: Simplify right side
    1,292,278.72x = 1,127,144,801,035.47
  5. Step 5: Solve for x
    x = 1,127,144,801,035.47/1,292,278.72
  6. Step 6: Final answer
    x = 872,214.94

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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.