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Finding the Fourth Proportional to 720,801.84, 994,488.24 and 503,004.72

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Solution

The fourth proportional to 720,801.84, 994,488.24 and 503,004.72 is: 693,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,801.84 : 994,488.24 = 503,004.72 : x
  2. Step 2: Convert to fraction form
    720,801.84/994,488.24 = 503,004.72/x
  3. Step 3: Cross multiply
    720,801.84x = 994,488.24 × 503,004.72
  4. Step 4: Simplify right side
    720,801.84x = 500,232,278,704.49
  5. Step 5: Solve for x
    x = 500,232,278,704.49/720,801.84
  6. Step 6: Final answer
    x = 693,994.18

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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.