Home / 709,404.80-1,064,107.20-443,465.60

Finding the Fourth Proportional to 709,404.80, 1,064,107.20 and 443,465.60

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Solution

The fourth proportional to 709,404.80, 1,064,107.20 and 443,465.60 is: 665,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,404.80 : 1,064,107.20 = 443,465.60 : x
  2. Step 2: Convert to fraction form
    709,404.80/1,064,107.20 = 443,465.60/x
  3. Step 3: Cross multiply
    709,404.80x = 1,064,107.20 × 443,465.60
  4. Step 4: Simplify right side
    709,404.80x = 471,894,937,912.32
  5. Step 5: Solve for x
    x = 471,894,937,912.32/709,404.80
  6. Step 6: Final answer
    x = 665,198.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.