Home / 997,999.80-1,377,239.67-545,290.80

Finding the Fourth Proportional to 997,999.80, 1,377,239.67 and 545,290.80

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Solution

The fourth proportional to 997,999.80, 1,377,239.67 and 545,290.80 is: 752,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,999.80 : 1,377,239.67 = 545,290.80 : x
  2. Step 2: Convert to fraction form
    997,999.80/1,377,239.67 = 545,290.80/x
  3. Step 3: Cross multiply
    997,999.80x = 1,377,239.67 × 545,290.80
  4. Step 4: Simplify right side
    997,999.80x = 750,996,121,446.04
  5. Step 5: Solve for x
    x = 750,996,121,446.04/997,999.80
  6. Step 6: Final answer
    x = 752,501.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.