Home / 745,839.72-1,029,333.15-455,435.28

Finding the Fourth Proportional to 745,839.72, 1,029,333.15 and 455,435.28

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Solution

The fourth proportional to 745,839.72, 1,029,333.15 and 455,435.28 is: 628,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,839.72 : 1,029,333.15 = 455,435.28 : x
  2. Step 2: Convert to fraction form
    745,839.72/1,029,333.15 = 455,435.28/x
  3. Step 3: Cross multiply
    745,839.72x = 1,029,333.15 × 455,435.28
  4. Step 4: Simplify right side
    745,839.72x = 468,794,631,383.53
  5. Step 5: Solve for x
    x = 468,794,631,383.53/745,839.72
  6. Step 6: Final answer
    x = 628,546.08

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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.