Home / 1,228,117.80-1,842,176.70-909,253.20

Finding the Fourth Proportional to 1,228,117.80, 1,842,176.70 and 909,253.20

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Solution

The fourth proportional to 1,228,117.80, 1,842,176.70 and 909,253.20 is: 1,363,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,117.80 : 1,842,176.70 = 909,253.20 : x
  2. Step 2: Convert to fraction form
    1,228,117.80/1,842,176.70 = 909,253.20/x
  3. Step 3: Cross multiply
    1,228,117.80x = 1,842,176.70 × 909,253.20
  4. Step 4: Simplify right side
    1,228,117.80x = 1,675,005,059,440.44
  5. Step 5: Solve for x
    x = 1,675,005,059,440.44/1,228,117.80
  6. Step 6: Final answer
    x = 1,363,879.80

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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.