Home / 777,255.15-1,072,614.28-450,631.63

Finding the Fourth Proportional to 777,255.15, 1,072,614.28 and 450,631.63

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Solution

The fourth proportional to 777,255.15, 1,072,614.28 and 450,631.63 is: 621,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,255.15 : 1,072,614.28 = 450,631.63 : x
  2. Step 2: Convert to fraction form
    777,255.15/1,072,614.28 = 450,631.63/x
  3. Step 3: Cross multiply
    777,255.15x = 1,072,614.28 × 450,631.63
  4. Step 4: Simplify right side
    777,255.15x = 483,353,916,422.98
  5. Step 5: Solve for x
    x = 483,353,916,422.98/777,255.15
  6. Step 6: Final answer
    x = 621,872.91

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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.