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Finding the Fourth Proportional to 651,704.40, 899,388 and 365,316.48

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Solution

The fourth proportional to 651,704.40, 899,388 and 365,316.48 is: 504,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,704.40 : 899,388 = 365,316.48 : x
  2. Step 2: Convert to fraction form
    651,704.40/899,388 = 365,316.48/x
  3. Step 3: Cross multiply
    651,704.40x = 899,388 × 365,316.48
  4. Step 4: Simplify right side
    651,704.40x = 328,561,258,314.24
  5. Step 5: Solve for x
    x = 328,561,258,314.24/651,704.40
  6. Step 6: Final answer
    x = 504,156.88

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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.