Home / 500,316.96-690,437.55-270,874.20

Finding the Fourth Proportional to 500,316.96, 690,437.55 and 270,874.20

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Solution

The fourth proportional to 500,316.96, 690,437.55 and 270,874.20 is: 373,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,316.96 : 690,437.55 = 270,874.20 : x
  2. Step 2: Convert to fraction form
    500,316.96/690,437.55 = 270,874.20/x
  3. Step 3: Cross multiply
    500,316.96x = 690,437.55 × 270,874.20
  4. Step 4: Simplify right side
    500,316.96x = 187,021,719,006.21
  5. Step 5: Solve for x
    x = 187,021,719,006.21/500,316.96
  6. Step 6: Final answer
    x = 373,806.47

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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.