Home / 917,342.20-1,373,291.70-681,729.40

Finding the Fourth Proportional to 917,342.20, 1,373,291.70 and 681,729.40

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Solution

The fourth proportional to 917,342.20, 1,373,291.70 and 681,729.40 is: 1,020,571.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,342.20 : 1,373,291.70 = 681,729.40 : x
  2. Step 2: Convert to fraction form
    917,342.20/1,373,291.70 = 681,729.40/x
  3. Step 3: Cross multiply
    917,342.20x = 1,373,291.70 × 681,729.40
  4. Step 4: Simplify right side
    917,342.20x = 936,213,326,665.98
  5. Step 5: Solve for x
    x = 936,213,326,665.98/917,342.20
  6. Step 6: Final answer
    x = 1,020,571.52

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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.