Home / 1,405,975.80-2,108,963.70-927,678.90

Finding the Fourth Proportional to 1,405,975.80, 2,108,963.70 and 927,678.90

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Solution

The fourth proportional to 1,405,975.80, 2,108,963.70 and 927,678.90 is: 1,391,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,975.80 : 2,108,963.70 = 927,678.90 : x
  2. Step 2: Convert to fraction form
    1,405,975.80/2,108,963.70 = 927,678.90/x
  3. Step 3: Cross multiply
    1,405,975.80x = 2,108,963.70 × 927,678.90
  4. Step 4: Simplify right side
    1,405,975.80x = 1,956,441,125,355.93
  5. Step 5: Solve for x
    x = 1,956,441,125,355.93/1,405,975.80
  6. Step 6: Final answer
    x = 1,391,518.35

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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.