Home / 917,043.40-1,372,940.70-812,067.40

Finding the Fourth Proportional to 917,043.40, 1,372,940.70 and 812,067.40

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Solution

The fourth proportional to 917,043.40, 1,372,940.70 and 812,067.40 is: 1,215,777.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,043.40 : 1,372,940.70 = 812,067.40 : x
  2. Step 2: Convert to fraction form
    917,043.40/1,372,940.70 = 812,067.40/x
  3. Step 3: Cross multiply
    917,043.40x = 1,372,940.70 × 812,067.40
  4. Step 4: Simplify right side
    917,043.40x = 1,114,920,384,603.18
  5. Step 5: Solve for x
    x = 1,114,920,384,603.18/917,043.40
  6. Step 6: Final answer
    x = 1,215,777.12

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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.