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Finding the Fourth Proportional to 520,046.36, 778,737.65 and 359,900.56

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Solution

The fourth proportional to 520,046.36, 778,737.65 and 359,900.56 is: 538,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,046.36 : 778,737.65 = 359,900.56 : x
  2. Step 2: Convert to fraction form
    520,046.36/778,737.65 = 359,900.56/x
  3. Step 3: Cross multiply
    520,046.36x = 778,737.65 × 359,900.56
  4. Step 4: Simplify right side
    520,046.36x = 280,268,112,434.40
  5. Step 5: Solve for x
    x = 280,268,112,434.40/520,046.36
  6. Step 6: Final answer
    x = 538,929.10

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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.