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Finding the Fourth Proportional to 526,424.80, 788,470.80 and 433,112.80

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Solution

The fourth proportional to 526,424.80, 788,470.80 and 433,112.80 is: 648,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,424.80 : 788,470.80 = 433,112.80 : x
  2. Step 2: Convert to fraction form
    526,424.80/788,470.80 = 433,112.80/x
  3. Step 3: Cross multiply
    526,424.80x = 788,470.80 × 433,112.80
  4. Step 4: Simplify right side
    526,424.80x = 341,496,795,906.24
  5. Step 5: Solve for x
    x = 341,496,795,906.24/526,424.80
  6. Step 6: Final answer
    x = 648,709.55

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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.