Home / 1,247,740.89-1,721,887.62-674,781.06

Finding the Fourth Proportional to 1,247,740.89, 1,721,887.62 and 674,781.06

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Solution

The fourth proportional to 1,247,740.89, 1,721,887.62 and 674,781.06 is: 931,200.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,740.89 : 1,721,887.62 = 674,781.06 : x
  2. Step 2: Convert to fraction form
    1,247,740.89/1,721,887.62 = 674,781.06/x
  3. Step 3: Cross multiply
    1,247,740.89x = 1,721,887.62 × 674,781.06
  4. Step 4: Simplify right side
    1,247,740.89x = 1,161,897,153,424.48
  5. Step 5: Solve for x
    x = 1,161,897,153,424.48/1,247,740.89
  6. Step 6: Final answer
    x = 931,200.67

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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.