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Finding the Fourth Proportional to 528,125.58, 728,800.47 and 301,756.50

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Solution

The fourth proportional to 528,125.58, 728,800.47 and 301,756.50 is: 416,416.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,125.58 : 728,800.47 = 301,756.50 : x
  2. Step 2: Convert to fraction form
    528,125.58/728,800.47 = 301,756.50/x
  3. Step 3: Cross multiply
    528,125.58x = 728,800.47 × 301,756.50
  4. Step 4: Simplify right side
    528,125.58x = 219,920,279,025.56
  5. Step 5: Solve for x
    x = 219,920,279,025.56/528,125.58
  6. Step 6: Final answer
    x = 416,416.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.