Home / 500,430.24-690,600.60-274,077.36

Finding the Fourth Proportional to 500,430.24, 690,600.60 and 274,077.36

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Solution

The fourth proportional to 500,430.24, 690,600.60 and 274,077.36 is: 378,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,430.24 : 690,600.60 = 274,077.36 : x
  2. Step 2: Convert to fraction form
    500,430.24/690,600.60 = 274,077.36/x
  3. Step 3: Cross multiply
    500,430.24x = 690,600.60 × 274,077.36
  4. Step 4: Simplify right side
    500,430.24x = 189,277,989,262.42
  5. Step 5: Solve for x
    x = 189,277,989,262.42/500,430.24
  6. Step 6: Final answer
    x = 378,230.52

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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.