Home / 922,386.80-1,380,815.40-811,794.80

Finding the Fourth Proportional to 922,386.80, 1,380,815.40 and 811,794.80

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Solution

The fourth proportional to 922,386.80, 1,380,815.40 and 811,794.80 is: 1,215,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,386.80 : 1,380,815.40 = 811,794.80 : x
  2. Step 2: Convert to fraction form
    922,386.80/1,380,815.40 = 811,794.80/x
  3. Step 3: Cross multiply
    922,386.80x = 1,380,815.40 × 811,794.80
  4. Step 4: Simplify right side
    922,386.80x = 1,120,938,761,479.92
  5. Step 5: Solve for x
    x = 1,120,938,761,479.92/922,386.80
  6. Step 6: Final answer
    x = 1,215,258.89

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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.