Home / 942,003.40-1,413,005.10-905,261.80

Finding the Fourth Proportional to 942,003.40, 1,413,005.10 and 905,261.80

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Solution

The fourth proportional to 942,003.40, 1,413,005.10 and 905,261.80 is: 1,357,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,003.40 : 1,413,005.10 = 905,261.80 : x
  2. Step 2: Convert to fraction form
    942,003.40/1,413,005.10 = 905,261.80/x
  3. Step 3: Cross multiply
    942,003.40x = 1,413,005.10 × 905,261.80
  4. Step 4: Simplify right side
    942,003.40x = 1,279,139,540,235.18
  5. Step 5: Solve for x
    x = 1,279,139,540,235.18/942,003.40
  6. Step 6: Final answer
    x = 1,357,892.70

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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.