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Finding the Fourth Proportional to 777,442.80, 1,072,504.44 and 454,955.04

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Solution

The fourth proportional to 777,442.80, 1,072,504.44 and 454,955.04 is: 627,623.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,442.80 : 1,072,504.44 = 454,955.04 : x
  2. Step 2: Convert to fraction form
    777,442.80/1,072,504.44 = 454,955.04/x
  3. Step 3: Cross multiply
    777,442.80x = 1,072,504.44 × 454,955.04
  4. Step 4: Simplify right side
    777,442.80x = 487,941,300,400.38
  5. Step 5: Solve for x
    x = 487,941,300,400.38/777,442.80
  6. Step 6: Final answer
    x = 627,623.41

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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.