Home / 1,241,113.60-1,859,920.80-766,388.80

Finding the Fourth Proportional to 1,241,113.60, 1,859,920.80 and 766,388.80

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Solution

The fourth proportional to 1,241,113.60, 1,859,920.80 and 766,388.80 is: 1,148,502.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,113.60 : 1,859,920.80 = 766,388.80 : x
  2. Step 2: Convert to fraction form
    1,241,113.60/1,859,920.80 = 766,388.80/x
  3. Step 3: Cross multiply
    1,241,113.60x = 1,859,920.80 × 766,388.80
  4. Step 4: Simplify right side
    1,241,113.60x = 1,425,422,470,007.04
  5. Step 5: Solve for x
    x = 1,425,422,470,007.04/1,241,113.60
  6. Step 6: Final answer
    x = 1,148,502.82

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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.