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Finding the Fourth Proportional to 519,804.90, 779,966.55 and 295,337.70

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Solution

The fourth proportional to 519,804.90, 779,966.55 and 295,337.70 is: 443,153.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,804.90 : 779,966.55 = 295,337.70 : x
  2. Step 2: Convert to fraction form
    519,804.90/779,966.55 = 295,337.70/x
  3. Step 3: Cross multiply
    519,804.90x = 779,966.55 × 295,337.70
  4. Step 4: Simplify right side
    519,804.90x = 230,353,526,953.94
  5. Step 5: Solve for x
    x = 230,353,526,953.94/519,804.90
  6. Step 6: Final answer
    x = 443,153.82

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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.