Home / 777,455.04-1,072,844.58-428,584.20

Finding the Fourth Proportional to 777,455.04, 1,072,844.58 and 428,584.20

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Solution

The fourth proportional to 777,455.04, 1,072,844.58 and 428,584.20 is: 591,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,455.04 : 1,072,844.58 = 428,584.20 : x
  2. Step 2: Convert to fraction form
    777,455.04/1,072,844.58 = 428,584.20/x
  3. Step 3: Cross multiply
    777,455.04x = 1,072,844.58 × 428,584.20
  4. Step 4: Simplify right side
    777,455.04x = 459,804,236,043.64
  5. Step 5: Solve for x
    x = 459,804,236,043.64/777,455.04
  6. Step 6: Final answer
    x = 591,422.28

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Double scale
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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.