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Finding the Fourth Proportional to 527,048.80, 789,406.80 and 433,736.80

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Solution

The fourth proportional to 527,048.80, 789,406.80 and 433,736.80 is: 649,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,048.80 : 789,406.80 = 433,736.80 : x
  2. Step 2: Convert to fraction form
    527,048.80/789,406.80 = 433,736.80/x
  3. Step 3: Cross multiply
    527,048.80x = 789,406.80 × 433,736.80
  4. Step 4: Simplify right side
    527,048.80x = 342,394,779,330.24
  5. Step 5: Solve for x
    x = 342,394,779,330.24/527,048.80
  6. Step 6: Final answer
    x = 649,645.31

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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.