Home / 637,421.92-879,640.66-350,942.00

Finding the Fourth Proportional to 637,421.92, 879,640.66 and 350,942.00

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Solution

The fourth proportional to 637,421.92, 879,640.66 and 350,942.00 is: 484,299.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,421.92 : 879,640.66 = 350,942.00 : x
  2. Step 2: Convert to fraction form
    637,421.92/879,640.66 = 350,942.00/x
  3. Step 3: Cross multiply
    637,421.92x = 879,640.66 × 350,942.00
  4. Step 4: Simplify right side
    637,421.92x = 308,702,853,490.17
  5. Step 5: Solve for x
    x = 308,702,853,490.17/637,421.92
  6. Step 6: Final answer
    x = 484,299.08

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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.