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Finding the Fourth Proportional to 565,499.54, 780,394.59 and 307,377.10

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Solution

The fourth proportional to 565,499.54, 780,394.59 and 307,377.10 is: 424,183.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,499.54 : 780,394.59 = 307,377.10 : x
  2. Step 2: Convert to fraction form
    565,499.54/780,394.59 = 307,377.10/x
  3. Step 3: Cross multiply
    565,499.54x = 780,394.59 × 307,377.10
  4. Step 4: Simplify right side
    565,499.54x = 239,875,422,515.66
  5. Step 5: Solve for x
    x = 239,875,422,515.66/565,499.54
  6. Step 6: Final answer
    x = 424,183.23

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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.