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Finding the Fourth Proportional to 479,855.52, 720,226.13 and 243,364.28

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Solution

The fourth proportional to 479,855.52, 720,226.13 and 243,364.28 is: 365,271.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,855.52 : 720,226.13 = 243,364.28 : x
  2. Step 2: Convert to fraction form
    479,855.52/720,226.13 = 243,364.28/x
  3. Step 3: Cross multiply
    479,855.52x = 720,226.13 × 243,364.28
  4. Step 4: Simplify right side
    479,855.52x = 175,277,308,746.68
  5. Step 5: Solve for x
    x = 175,277,308,746.68/479,855.52
  6. Step 6: Final answer
    x = 365,271.01

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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.