Home / 777,474.25-1,072,547.63-454,984.70

Finding the Fourth Proportional to 777,474.25, 1,072,547.63 and 454,984.70

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Solution

The fourth proportional to 777,474.25, 1,072,547.63 and 454,984.70 is: 627,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,474.25 : 1,072,547.63 = 454,984.70 : x
  2. Step 2: Convert to fraction form
    777,474.25/1,072,547.63 = 454,984.70/x
  3. Step 3: Cross multiply
    777,474.25x = 1,072,547.63 × 454,984.70
  4. Step 4: Simplify right side
    777,474.25x = 487,992,755,739.79
  5. Step 5: Solve for x
    x = 487,992,755,739.79/777,474.25
  6. Step 6: Final answer
    x = 627,664.21

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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.