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Finding the Fourth Proportional to 528,021.70, 791,838.15 and 173,047.30

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Solution

The fourth proportional to 528,021.70, 791,838.15 and 173,047.30 is: 259,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,021.70 : 791,838.15 = 173,047.30 : x
  2. Step 2: Convert to fraction form
    528,021.70/791,838.15 = 173,047.30/x
  3. Step 3: Cross multiply
    528,021.70x = 791,838.15 × 173,047.30
  4. Step 4: Simplify right side
    528,021.70x = 137,025,453,894.50
  5. Step 5: Solve for x
    x = 137,025,453,894.50/528,021.70
  6. Step 6: Final answer
    x = 259,507.24

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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.