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Finding the Fourth Proportional to 454,500.40, 627,804.12 and 368,779.72

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Solution

The fourth proportional to 454,500.40, 627,804.12 and 368,779.72 is: 509,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,500.40 : 627,804.12 = 368,779.72 : x
  2. Step 2: Convert to fraction form
    454,500.40/627,804.12 = 368,779.72/x
  3. Step 3: Cross multiply
    454,500.40x = 627,804.12 × 368,779.72
  4. Step 4: Simplify right side
    454,500.40x = 231,521,427,588.45
  5. Step 5: Solve for x
    x = 231,521,427,588.45/454,500.40
  6. Step 6: Final answer
    x = 509,397.63

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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.