Home / 500,319.09-690,440.57-270,876.38

Finding the Fourth Proportional to 500,319.09, 690,440.57 and 270,876.38

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Solution

The fourth proportional to 500,319.09, 690,440.57 and 270,876.38 is: 373,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,319.09 : 690,440.57 = 270,876.38 : x
  2. Step 2: Convert to fraction form
    500,319.09/690,440.57 = 270,876.38/x
  3. Step 3: Cross multiply
    500,319.09x = 690,440.57 × 270,876.38
  4. Step 4: Simplify right side
    500,319.09x = 187,024,037,400.15
  5. Step 5: Solve for x
    x = 187,024,037,400.15/500,319.09
  6. Step 6: Final answer
    x = 373,809.52

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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.