Home / 512,144.04-706,758.90-282,701.45

Finding the Fourth Proportional to 512,144.04, 706,758.90 and 282,701.45

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Solution

The fourth proportional to 512,144.04, 706,758.90 and 282,701.45 is: 390,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,144.04 : 706,758.90 = 282,701.45 : x
  2. Step 2: Convert to fraction form
    512,144.04/706,758.90 = 282,701.45/x
  3. Step 3: Cross multiply
    512,144.04x = 706,758.90 × 282,701.45
  4. Step 4: Simplify right side
    512,144.04x = 199,801,766,537.17
  5. Step 5: Solve for x
    x = 199,801,766,537.17/512,144.04
  6. Step 6: Final answer
    x = 390,128.07

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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.