Home / 1,228,671.38-1,695,426.36-712,317.58

Finding the Fourth Proportional to 1,228,671.38, 1,695,426.36 and 712,317.58

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Solution

The fourth proportional to 1,228,671.38, 1,695,426.36 and 712,317.58 is: 982,917.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,671.38 : 1,695,426.36 = 712,317.58 : x
  2. Step 2: Convert to fraction form
    1,228,671.38/1,695,426.36 = 712,317.58/x
  3. Step 3: Cross multiply
    1,228,671.38x = 1,695,426.36 × 712,317.58
  4. Step 4: Simplify right side
    1,228,671.38x = 1,207,681,994,913.65
  5. Step 5: Solve for x
    x = 1,207,681,994,913.65/1,228,671.38
  6. Step 6: Final answer
    x = 982,917.00

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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.