Home / 516,418.02-712,792.20-290,136.42

Finding the Fourth Proportional to 516,418.02, 712,792.20 and 290,136.42

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Solution

The fourth proportional to 516,418.02, 712,792.20 and 290,136.42 is: 400,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,418.02 : 712,792.20 = 290,136.42 : x
  2. Step 2: Convert to fraction form
    516,418.02/712,792.20 = 290,136.42/x
  3. Step 3: Cross multiply
    516,418.02x = 712,792.20 × 290,136.42
  4. Step 4: Simplify right side
    516,418.02x = 206,806,977,111.92
  5. Step 5: Solve for x
    x = 206,806,977,111.92/516,418.02
  6. Step 6: Final answer
    x = 400,464.29

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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.