Home / 777,433.83-1,072,895.13-455,247.69

Finding the Fourth Proportional to 777,433.83, 1,072,895.13 and 455,247.69

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Solution

The fourth proportional to 777,433.83, 1,072,895.13 and 455,247.69 is: 628,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,433.83 : 1,072,895.13 = 455,247.69 : x
  2. Step 2: Convert to fraction form
    777,433.83/1,072,895.13 = 455,247.69/x
  3. Step 3: Cross multiply
    777,433.83x = 1,072,895.13 × 455,247.69
  4. Step 4: Simplify right side
    777,433.83x = 488,433,029,544.75
  5. Step 5: Solve for x
    x = 488,433,029,544.75/777,433.83
  6. Step 6: Final answer
    x = 628,263.15

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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.