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Finding the Fourth Proportional to 646,696.38, 970,459.76 and 433,704.85

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Solution

The fourth proportional to 646,696.38, 970,459.76 and 433,704.85 is: 650,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,696.38 : 970,459.76 = 433,704.85 : x
  2. Step 2: Convert to fraction form
    646,696.38/970,459.76 = 433,704.85/x
  3. Step 3: Cross multiply
    646,696.38x = 970,459.76 × 433,704.85
  4. Step 4: Simplify right side
    646,696.38x = 420,893,104,641.84
  5. Step 5: Solve for x
    x = 420,893,104,641.84/646,696.38
  6. Step 6: Final answer
    x = 650,835.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.