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Finding the Fourth Proportional to 637,490.62, 879,739.68 and 382,846.06

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Solution

The fourth proportional to 637,490.62, 879,739.68 and 382,846.06 is: 528,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,490.62 : 879,739.68 = 382,846.06 : x
  2. Step 2: Convert to fraction form
    637,490.62/879,739.68 = 382,846.06/x
  3. Step 3: Cross multiply
    637,490.62x = 879,739.68 × 382,846.06
  4. Step 4: Simplify right side
    637,490.62x = 336,804,870,313.66
  5. Step 5: Solve for x
    x = 336,804,870,313.66/637,490.62
  6. Step 6: Final answer
    x = 528,329.14

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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.