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Finding the Fourth Proportional to 454,801.86, 681,548.82 and 312,807.47

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Solution

The fourth proportional to 454,801.86, 681,548.82 and 312,807.47 is: 468,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,801.86 : 681,548.82 = 312,807.47 : x
  2. Step 2: Convert to fraction form
    454,801.86/681,548.82 = 312,807.47/x
  3. Step 3: Cross multiply
    454,801.86x = 681,548.82 × 312,807.47
  4. Step 4: Simplify right side
    454,801.86x = 213,193,557,484.91
  5. Step 5: Solve for x
    x = 213,193,557,484.91/454,801.86
  6. Step 6: Final answer
    x = 468,761.40

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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.