Home / 1,115,385.27-1,539,106.74-631,846.86

Finding the Fourth Proportional to 1,115,385.27, 1,539,106.74 and 631,846.86

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Solution

The fourth proportional to 1,115,385.27, 1,539,106.74 and 631,846.86 is: 871,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,385.27 : 1,539,106.74 = 631,846.86 : x
  2. Step 2: Convert to fraction form
    1,115,385.27/1,539,106.74 = 631,846.86/x
  3. Step 3: Cross multiply
    1,115,385.27x = 1,539,106.74 × 631,846.86
  4. Step 4: Simplify right side
    1,115,385.27x = 972,479,760,873.84
  5. Step 5: Solve for x
    x = 972,479,760,873.84/1,115,385.27
  6. Step 6: Final answer
    x = 871,877.89

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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.