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Finding the Fourth Proportional to 637,489.62, 879,738.30 and 382,845.06

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Solution

The fourth proportional to 637,489.62, 879,738.30 and 382,845.06 is: 528,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,489.62 : 879,738.30 = 382,845.06 : x
  2. Step 2: Convert to fraction form
    637,489.62/879,738.30 = 382,845.06/x
  3. Step 3: Cross multiply
    637,489.62x = 879,738.30 × 382,845.06
  4. Step 4: Simplify right side
    637,489.62x = 336,803,462,247.80
  5. Step 5: Solve for x
    x = 336,803,462,247.80/637,489.62
  6. Step 6: Final answer
    x = 528,327.76

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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.