Home / 471,799.20-651,136.68-280,813.20

Finding the Fourth Proportional to 471,799.20, 651,136.68 and 280,813.20

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Solution

The fourth proportional to 471,799.20, 651,136.68 and 280,813.20 is: 387,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,799.20 : 651,136.68 = 280,813.20 : x
  2. Step 2: Convert to fraction form
    471,799.20/651,136.68 = 280,813.20/x
  3. Step 3: Cross multiply
    471,799.20x = 651,136.68 × 280,813.20
  4. Step 4: Simplify right side
    471,799.20x = 182,847,774,748.18
  5. Step 5: Solve for x
    x = 182,847,774,748.18/471,799.20
  6. Step 6: Final answer
    x = 387,554.23

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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.