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Finding the Fourth Proportional to 519,956.42, 779,417.94 and 361,852.72

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Solution

The fourth proportional to 519,956.42, 779,417.94 and 361,852.72 is: 542,419.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,956.42 : 779,417.94 = 361,852.72 : x
  2. Step 2: Convert to fraction form
    519,956.42/779,417.94 = 361,852.72/x
  3. Step 3: Cross multiply
    519,956.42x = 779,417.94 × 361,852.72
  4. Step 4: Simplify right side
    519,956.42x = 282,034,501,014.20
  5. Step 5: Solve for x
    x = 282,034,501,014.20/519,956.42
  6. Step 6: Final answer
    x = 542,419.50

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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.