Home / 432,130.20-647,417.70-369,922.20

Finding the Fourth Proportional to 432,130.20, 647,417.70 and 369,922.20

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Solution

The fourth proportional to 432,130.20, 647,417.70 and 369,922.20 is: 554,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,130.20 : 647,417.70 = 369,922.20 : x
  2. Step 2: Convert to fraction form
    432,130.20/647,417.70 = 369,922.20/x
  3. Step 3: Cross multiply
    432,130.20x = 647,417.70 × 369,922.20
  4. Step 4: Simplify right side
    432,130.20x = 239,494,179,902.94
  5. Step 5: Solve for x
    x = 239,494,179,902.94/432,130.20
  6. Step 6: Final answer
    x = 554,217.64

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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.