Home / 500,315.18-690,429.88-270,866.38

Finding the Fourth Proportional to 500,315.18, 690,429.88 and 270,866.38

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Solution

The fourth proportional to 500,315.18, 690,429.88 and 270,866.38 is: 373,792.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,315.18 : 690,429.88 = 270,866.38 : x
  2. Step 2: Convert to fraction form
    500,315.18/690,429.88 = 270,866.38/x
  3. Step 3: Cross multiply
    500,315.18x = 690,429.88 × 270,866.38
  4. Step 4: Simplify right side
    500,315.18x = 187,014,240,622.88
  5. Step 5: Solve for x
    x = 187,014,240,622.88/500,315.18
  6. Step 6: Final answer
    x = 373,792.86

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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.