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Finding the Fourth Proportional to 646,599.40, 970,935.90 and 437,165.80

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Solution

The fourth proportional to 646,599.40, 970,935.90 and 437,165.80 is: 656,449.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,599.40 : 970,935.90 = 437,165.80 : x
  2. Step 2: Convert to fraction form
    646,599.40/970,935.90 = 437,165.80/x
  3. Step 3: Cross multiply
    646,599.40x = 970,935.90 × 437,165.80
  4. Step 4: Simplify right side
    646,599.40x = 424,459,969,472.22
  5. Step 5: Solve for x
    x = 424,459,969,472.22/646,599.40
  6. Step 6: Final answer
    x = 656,449.68

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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.