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Finding the Fourth Proportional to 522,093.80, 783,140.70 and 272,743.40

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Solution

The fourth proportional to 522,093.80, 783,140.70 and 272,743.40 is: 409,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,093.80 : 783,140.70 = 272,743.40 : x
  2. Step 2: Convert to fraction form
    522,093.80/783,140.70 = 272,743.40/x
  3. Step 3: Cross multiply
    522,093.80x = 783,140.70 × 272,743.40
  4. Step 4: Simplify right side
    522,093.80x = 213,596,457,196.38
  5. Step 5: Solve for x
    x = 213,596,457,196.38/522,093.80
  6. Step 6: Final answer
    x = 409,115.10

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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.