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Finding the Fourth Proportional to 777,502.72, 1,072,933.44 and 437,950.72

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Solution

The fourth proportional to 777,502.72, 1,072,933.44 and 437,950.72 is: 604,360.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,502.72 : 1,072,933.44 = 437,950.72 : x
  2. Step 2: Convert to fraction form
    777,502.72/1,072,933.44 = 437,950.72/x
  3. Step 3: Cross multiply
    777,502.72x = 1,072,933.44 × 437,950.72
  4. Step 4: Simplify right side
    777,502.72x = 469,891,972,560.08
  5. Step 5: Solve for x
    x = 469,891,972,560.08/777,502.72
  6. Step 6: Final answer
    x = 604,360.55

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1.5x scale

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.