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Finding the Fourth Proportional to 674,146.20, 930,695.40 and 459,601.50

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Solution

The fourth proportional to 674,146.20, 930,695.40 and 459,601.50 is: 634,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,146.20 : 930,695.40 = 459,601.50 : x
  2. Step 2: Convert to fraction form
    674,146.20/930,695.40 = 459,601.50/x
  3. Step 3: Cross multiply
    674,146.20x = 930,695.40 × 459,601.50
  4. Step 4: Simplify right side
    674,146.20x = 427,749,001,883.10
  5. Step 5: Solve for x
    x = 427,749,001,883.10/674,146.20
  6. Step 6: Final answer
    x = 634,504.80

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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.