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Finding the Fourth Proportional to 519,324.10, 778,897.83 and 145,260.10

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Solution

The fourth proportional to 519,324.10, 778,897.83 and 145,260.10 is: 217,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,324.10 : 778,897.83 = 145,260.10 : x
  2. Step 2: Convert to fraction form
    519,324.10/778,897.83 = 145,260.10/x
  3. Step 3: Cross multiply
    519,324.10x = 778,897.83 × 145,260.10
  4. Step 4: Simplify right side
    519,324.10x = 113,142,776,675.58
  5. Step 5: Solve for x
    x = 113,142,776,675.58/519,324.10
  6. Step 6: Final answer
    x = 217,865.45

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1.5x scale

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.