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Finding the Fourth Proportional to 433,332.80, 649,999.20 and 378,036.80

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Solution

The fourth proportional to 433,332.80, 649,999.20 and 378,036.80 is: 567,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,332.80 : 649,999.20 = 378,036.80 : x
  2. Step 2: Convert to fraction form
    433,332.80/649,999.20 = 378,036.80/x
  3. Step 3: Cross multiply
    433,332.80x = 649,999.20 × 378,036.80
  4. Step 4: Simplify right side
    433,332.80x = 245,723,617,570.56
  5. Step 5: Solve for x
    x = 245,723,617,570.56/433,332.80
  6. Step 6: Final answer
    x = 567,055.20

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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.