Home / 919,795.50-1,379,705.54-288,709.31

Finding the Fourth Proportional to 919,795.50, 1,379,705.54 and 288,709.31

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Solution

The fourth proportional to 919,795.50, 1,379,705.54 and 288,709.31 is: 433,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,795.50 : 1,379,705.54 = 288,709.31 : x
  2. Step 2: Convert to fraction form
    919,795.50/1,379,705.54 = 288,709.31/x
  3. Step 3: Cross multiply
    919,795.50x = 1,379,705.54 × 288,709.31
  4. Step 4: Simplify right side
    919,795.50x = 398,333,836,462.30
  5. Step 5: Solve for x
    x = 398,333,836,462.30/919,795.50
  6. Step 6: Final answer
    x = 433,067.82

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1.5x scale

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.