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Finding the Fourth Proportional to 637,263.52, 879,446.85 and 346,861.03

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Solution

The fourth proportional to 637,263.52, 879,446.85 and 346,861.03 is: 478,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,263.52 : 879,446.85 = 346,861.03 : x
  2. Step 2: Convert to fraction form
    637,263.52/879,446.85 = 346,861.03/x
  3. Step 3: Cross multiply
    637,263.52x = 879,446.85 × 346,861.03
  4. Step 4: Simplify right side
    637,263.52x = 305,045,840,221.26
  5. Step 5: Solve for x
    x = 305,045,840,221.26/637,263.52
  6. Step 6: Final answer
    x = 478,680.84

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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.