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Finding the Fourth Proportional to 536,359.36, 740,152 and 321,617.92

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Solution

The fourth proportional to 536,359.36, 740,152 and 321,617.92 is: 443,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,359.36 : 740,152 = 321,617.92 : x
  2. Step 2: Convert to fraction form
    536,359.36/740,152 = 321,617.92/x
  3. Step 3: Cross multiply
    536,359.36x = 740,152 × 321,617.92
  4. Step 4: Simplify right side
    536,359.36x = 238,046,146,723.84
  5. Step 5: Solve for x
    x = 238,046,146,723.84/536,359.36
  6. Step 6: Final answer
    x = 443,818.39

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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.