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Finding the Fourth Proportional to 523,488.83, 785,624.04 and 388,863.74

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Solution

The fourth proportional to 523,488.83, 785,624.04 and 388,863.74 is: 583,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,488.83 : 785,624.04 = 388,863.74 : x
  2. Step 2: Convert to fraction form
    523,488.83/785,624.04 = 388,863.74/x
  3. Step 3: Cross multiply
    523,488.83x = 785,624.04 × 388,863.74
  4. Step 4: Simplify right side
    523,488.83x = 305,500,704,392.37
  5. Step 5: Solve for x
    x = 305,500,704,392.37/523,488.83
  6. Step 6: Final answer
    x = 583,585.91

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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.