Home / 1,267,881.80-1,901,822.70-426,345.80

Finding the Fourth Proportional to 1,267,881.80, 1,901,822.70 and 426,345.80

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Solution

The fourth proportional to 1,267,881.80, 1,901,822.70 and 426,345.80 is: 639,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,881.80 : 1,901,822.70 = 426,345.80 : x
  2. Step 2: Convert to fraction form
    1,267,881.80/1,901,822.70 = 426,345.80/x
  3. Step 3: Cross multiply
    1,267,881.80x = 1,901,822.70 × 426,345.80
  4. Step 4: Simplify right side
    1,267,881.80x = 810,834,120,489.66
  5. Step 5: Solve for x
    x = 810,834,120,489.66/1,267,881.80
  6. Step 6: Final answer
    x = 639,518.70

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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.