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Finding the Fourth Proportional to 453,804.80, 627,114.24 and 340,430.72

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Solution

The fourth proportional to 453,804.80, 627,114.24 and 340,430.72 is: 470,442.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,804.80 : 627,114.24 = 340,430.72 : x
  2. Step 2: Convert to fraction form
    453,804.80/627,114.24 = 340,430.72/x
  3. Step 3: Cross multiply
    453,804.80x = 627,114.24 × 340,430.72
  4. Step 4: Simplify right side
    453,804.80x = 213,488,952,245.45
  5. Step 5: Solve for x
    x = 213,488,952,245.45/453,804.80
  6. Step 6: Final answer
    x = 470,442.25

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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.