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Finding the Fourth Proportional to 777,427.36, 1,072,483.02 and 454,937.80

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Solution

The fourth proportional to 777,427.36, 1,072,483.02 and 454,937.80 is: 627,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,427.36 : 1,072,483.02 = 454,937.80 : x
  2. Step 2: Convert to fraction form
    777,427.36/1,072,483.02 = 454,937.80/x
  3. Step 3: Cross multiply
    777,427.36x = 1,072,483.02 × 454,937.80
  4. Step 4: Simplify right side
    777,427.36x = 487,913,065,656.16
  5. Step 5: Solve for x
    x = 487,913,065,656.16/777,427.36
  6. Step 6: Final answer
    x = 627,599.56

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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.