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Finding the Fourth Proportional to 576,189.60, 863,977.20 and 243,389.60

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Solution

The fourth proportional to 576,189.60, 863,977.20 and 243,389.60 is: 364,954.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,189.60 : 863,977.20 = 243,389.60 : x
  2. Step 2: Convert to fraction form
    576,189.60/863,977.20 = 243,389.60/x
  3. Step 3: Cross multiply
    576,189.60x = 863,977.20 × 243,389.60
  4. Step 4: Simplify right side
    576,189.60x = 210,283,065,117.12
  5. Step 5: Solve for x
    x = 210,283,065,117.12/576,189.60
  6. Step 6: Final answer
    x = 364,954.63

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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.