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Finding the Fourth Proportional to 903,637.64, 1,354,737.16 and 447,908.15

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Solution

The fourth proportional to 903,637.64, 1,354,737.16 and 447,908.15 is: 671,505.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,637.64 : 1,354,737.16 = 447,908.15 : x
  2. Step 2: Convert to fraction form
    903,637.64/1,354,737.16 = 447,908.15/x
  3. Step 3: Cross multiply
    903,637.64x = 1,354,737.16 × 447,908.15
  4. Step 4: Simplify right side
    903,637.64x = 606,797,815,071.85
  5. Step 5: Solve for x
    x = 606,797,815,071.85/903,637.64
  6. Step 6: Final answer
    x = 671,505.69

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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.