Home / 486,022.60-729,033.90-423,814.60

Finding the Fourth Proportional to 486,022.60, 729,033.90 and 423,814.60

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Solution

The fourth proportional to 486,022.60, 729,033.90 and 423,814.60 is: 635,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,022.60 : 729,033.90 = 423,814.60 : x
  2. Step 2: Convert to fraction form
    486,022.60/729,033.90 = 423,814.60/x
  3. Step 3: Cross multiply
    486,022.60x = 729,033.90 × 423,814.60
  4. Step 4: Simplify right side
    486,022.60x = 308,975,210,714.94
  5. Step 5: Solve for x
    x = 308,975,210,714.94/486,022.60
  6. Step 6: Final answer
    x = 635,721.90

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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.