Home / 1,145,386.10-1,580,589.54-636,121.28

Finding the Fourth Proportional to 1,145,386.10, 1,580,589.54 and 636,121.28

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Solution

The fourth proportional to 1,145,386.10, 1,580,589.54 and 636,121.28 is: 877,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,386.10 : 1,580,589.54 = 636,121.28 : x
  2. Step 2: Convert to fraction form
    1,145,386.10/1,580,589.54 = 636,121.28/x
  3. Step 3: Cross multiply
    1,145,386.10x = 1,580,589.54 × 636,121.28
  4. Step 4: Simplify right side
    1,145,386.10x = 1,005,446,641,339.41
  5. Step 5: Solve for x
    x = 1,005,446,641,339.41/1,145,386.10
  6. Step 6: Final answer
    x = 877,823.33

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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.