Home / 727,940.80-1,091,911.20-475,998.40

Finding the Fourth Proportional to 727,940.80, 1,091,911.20 and 475,998.40

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Solution

The fourth proportional to 727,940.80, 1,091,911.20 and 475,998.40 is: 713,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,940.80 : 1,091,911.20 = 475,998.40 : x
  2. Step 2: Convert to fraction form
    727,940.80/1,091,911.20 = 475,998.40/x
  3. Step 3: Cross multiply
    727,940.80x = 1,091,911.20 × 475,998.40
  4. Step 4: Simplify right side
    727,940.80x = 519,747,984,142.08
  5. Step 5: Solve for x
    x = 519,747,984,142.08/727,940.80
  6. Step 6: Final answer
    x = 713,997.60

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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.