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Finding the Fourth Proportional to 528,509.79, 792,885.78 and 229,040.64

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Solution

The fourth proportional to 528,509.79, 792,885.78 and 229,040.64 is: 343,613.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,509.79 : 792,885.78 = 229,040.64 : x
  2. Step 2: Convert to fraction form
    528,509.79/792,885.78 = 229,040.64/x
  3. Step 3: Cross multiply
    528,509.79x = 792,885.78 × 229,040.64
  4. Step 4: Simplify right side
    528,509.79x = 181,603,066,498.10
  5. Step 5: Solve for x
    x = 181,603,066,498.10/528,509.79
  6. Step 6: Final answer
    x = 343,613.44

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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.