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Finding the Fourth Proportional to 528,078.15, 792,117.23 and 243,768.15

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Solution

The fourth proportional to 528,078.15, 792,117.23 and 243,768.15 is: 365,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,078.15 : 792,117.23 = 243,768.15 : x
  2. Step 2: Convert to fraction form
    528,078.15/792,117.23 = 243,768.15/x
  3. Step 3: Cross multiply
    528,078.15x = 792,117.23 × 243,768.15
  4. Step 4: Simplify right side
    528,078.15x = 193,092,950,521.38
  5. Step 5: Solve for x
    x = 193,092,950,521.38/528,078.15
  6. Step 6: Final answer
    x = 365,652.23

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Double scale
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Similar ratio
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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.