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Finding the Fourth Proportional to 637,483.12, 879,759.04 and 361,860.38

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Solution

The fourth proportional to 637,483.12, 879,759.04 and 361,860.38 is: 499,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,483.12 : 879,759.04 = 361,860.38 : x
  2. Step 2: Convert to fraction form
    637,483.12/879,759.04 = 361,860.38/x
  3. Step 3: Cross multiply
    637,483.12x = 879,759.04 × 361,860.38
  4. Step 4: Simplify right side
    637,483.12x = 318,349,940,522.84
  5. Step 5: Solve for x
    x = 318,349,940,522.84/637,483.12
  6. Step 6: Final answer
    x = 499,385.68

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1.5x scale

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.