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Finding the Fourth Proportional to 543,715.20, 814,017.60 and 543,715.20

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Solution

The fourth proportional to 543,715.20, 814,017.60 and 543,715.20 is: 814,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,715.20 : 814,017.60 = 543,715.20 : x
  2. Step 2: Convert to fraction form
    543,715.20/814,017.60 = 543,715.20/x
  3. Step 3: Cross multiply
    543,715.20x = 814,017.60 × 543,715.20
  4. Step 4: Simplify right side
    543,715.20x = 442,593,742,187.52
  5. Step 5: Solve for x
    x = 442,593,742,187.52/543,715.20
  6. Step 6: Final answer
    x = 814,017.60

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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.