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Finding the Fourth Proportional to 539,707.42, 744,807.85 and 298,005.27

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Solution

The fourth proportional to 539,707.42, 744,807.85 and 298,005.27 is: 411,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,707.42 : 744,807.85 = 298,005.27 : x
  2. Step 2: Convert to fraction form
    539,707.42/744,807.85 = 298,005.27/x
  3. Step 3: Cross multiply
    539,707.42x = 744,807.85 × 298,005.27
  4. Step 4: Simplify right side
    539,707.42x = 221,956,664,437.37
  5. Step 5: Solve for x
    x = 221,956,664,437.37/539,707.42
  6. Step 6: Final answer
    x = 411,253.68

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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.