Home / 1,291,738.60-1,936,916.70-542,938.60

Finding the Fourth Proportional to 1,291,738.60, 1,936,916.70 and 542,938.60

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Solution

The fourth proportional to 1,291,738.60, 1,936,916.70 and 542,938.60 is: 814,117.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,738.60 : 1,936,916.70 = 542,938.60 : x
  2. Step 2: Convert to fraction form
    1,291,738.60/1,936,916.70 = 542,938.60/x
  3. Step 3: Cross multiply
    1,291,738.60x = 1,936,916.70 × 542,938.60
  4. Step 4: Simplify right side
    1,291,738.60x = 1,051,626,841,414.62
  5. Step 5: Solve for x
    x = 1,051,626,841,414.62/1,291,738.60
  6. Step 6: Final answer
    x = 814,117.38

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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.