Home / 486,021.40-729,032.10-384,544.60

Finding the Fourth Proportional to 486,021.40, 729,032.10 and 384,544.60

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Solution

The fourth proportional to 486,021.40, 729,032.10 and 384,544.60 is: 576,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,021.40 : 729,032.10 = 384,544.60 : x
  2. Step 2: Convert to fraction form
    486,021.40/729,032.10 = 384,544.60/x
  3. Step 3: Cross multiply
    486,021.40x = 729,032.10 × 384,544.60
  4. Step 4: Simplify right side
    486,021.40x = 280,345,357,281.66
  5. Step 5: Solve for x
    x = 280,345,357,281.66/486,021.40
  6. Step 6: Final answer
    x = 576,816.90

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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.