Home / 907,793.70-1,362,127.95-640,979.70

Finding the Fourth Proportional to 907,793.70, 1,362,127.95 and 640,979.70

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Solution

The fourth proportional to 907,793.70, 1,362,127.95 and 640,979.70 is: 961,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,793.70 : 1,362,127.95 = 640,979.70 : x
  2. Step 2: Convert to fraction form
    907,793.70/1,362,127.95 = 640,979.70/x
  3. Step 3: Cross multiply
    907,793.70x = 1,362,127.95 × 640,979.70
  4. Step 4: Simplify right side
    907,793.70x = 873,096,364,752.62
  5. Step 5: Solve for x
    x = 873,096,364,752.62/907,793.70
  6. Step 6: Final answer
    x = 961,778.39

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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.