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Finding the Fourth Proportional to 536,661.78, 740,577.58 and 307,211.46

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Solution

The fourth proportional to 536,661.78, 740,577.58 and 307,211.46 is: 423,942.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,661.78 : 740,577.58 = 307,211.46 : x
  2. Step 2: Convert to fraction form
    536,661.78/740,577.58 = 307,211.46/x
  3. Step 3: Cross multiply
    536,661.78x = 740,577.58 × 307,211.46
  4. Step 4: Simplify right side
    536,661.78x = 227,513,919,595.07
  5. Step 5: Solve for x
    x = 227,513,919,595.07/536,661.78
  6. Step 6: Final answer
    x = 423,942.84

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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.