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Finding the Fourth Proportional to 665,999.52, 919,082.32 and 364,193.12

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Solution

The fourth proportional to 665,999.52, 919,082.32 and 364,193.12 is: 502,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,999.52 : 919,082.32 = 364,193.12 : x
  2. Step 2: Convert to fraction form
    665,999.52/919,082.32 = 364,193.12/x
  3. Step 3: Cross multiply
    665,999.52x = 919,082.32 × 364,193.12
  4. Step 4: Simplify right side
    665,999.52x = 334,723,457,657.64
  5. Step 5: Solve for x
    x = 334,723,457,657.64/665,999.52
  6. Step 6: Final answer
    x = 502,588.14

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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.