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Finding the Fourth Proportional to 536,549.84, 740,479.96 and 307,179.07

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Solution

The fourth proportional to 536,549.84, 740,479.96 and 307,179.07 is: 423,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,549.84 : 740,479.96 = 307,179.07 : x
  2. Step 2: Convert to fraction form
    536,549.84/740,479.96 = 307,179.07/x
  3. Step 3: Cross multiply
    536,549.84x = 740,479.96 × 307,179.07
  4. Step 4: Simplify right side
    536,549.84x = 227,459,943,999.21
  5. Step 5: Solve for x
    x = 227,459,943,999.21/536,549.84
  6. Step 6: Final answer
    x = 423,930.69

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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.