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Finding the Fourth Proportional to 942,842.40, 1,412,708.40 and 802,874.40

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Solution

The fourth proportional to 942,842.40, 1,412,708.40 and 802,874.40 is: 1,202,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,842.40 : 1,412,708.40 = 802,874.40 : x
  2. Step 2: Convert to fraction form
    942,842.40/1,412,708.40 = 802,874.40/x
  3. Step 3: Cross multiply
    942,842.40x = 1,412,708.40 × 802,874.40
  4. Step 4: Simplify right side
    942,842.40x = 1,134,227,409,024.96
  5. Step 5: Solve for x
    x = 1,134,227,409,024.96/942,842.40
  6. Step 6: Final answer
    x = 1,202,987.27

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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.