Home / 1,018,846.80-1,405,572.48-636,209.28

Finding the Fourth Proportional to 1,018,846.80, 1,405,572.48 and 636,209.28

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Solution

The fourth proportional to 1,018,846.80, 1,405,572.48 and 636,209.28 is: 877,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,846.80 : 1,405,572.48 = 636,209.28 : x
  2. Step 2: Convert to fraction form
    1,018,846.80/1,405,572.48 = 636,209.28/x
  3. Step 3: Cross multiply
    1,018,846.80x = 1,405,572.48 × 636,209.28
  4. Step 4: Simplify right side
    1,018,846.80x = 894,238,255,488.61
  5. Step 5: Solve for x
    x = 894,238,255,488.61/1,018,846.80
  6. Step 6: Final answer
    x = 877,696.49

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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.