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Finding the Fourth Proportional to 454,907.20, 681,048.60 and 402,419.20

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Solution

The fourth proportional to 454,907.20, 681,048.60 and 402,419.20 is: 602,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,907.20 : 681,048.60 = 402,419.20 : x
  2. Step 2: Convert to fraction form
    454,907.20/681,048.60 = 402,419.20/x
  3. Step 3: Cross multiply
    454,907.20x = 681,048.60 × 402,419.20
  4. Step 4: Simplify right side
    454,907.20x = 274,067,032,773.12
  5. Step 5: Solve for x
    x = 274,067,032,773.12/454,907.20
  6. Step 6: Final answer
    x = 602,468.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.