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Finding the Fourth Proportional to 565,153.08, 779,908.95 and 323,434.50

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Solution

The fourth proportional to 565,153.08, 779,908.95 and 323,434.50 is: 446,338.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,153.08 : 779,908.95 = 323,434.50 : x
  2. Step 2: Convert to fraction form
    565,153.08/779,908.95 = 323,434.50/x
  3. Step 3: Cross multiply
    565,153.08x = 779,908.95 × 323,434.50
  4. Step 4: Simplify right side
    565,153.08x = 252,249,461,288.78
  5. Step 5: Solve for x
    x = 252,249,461,288.78/565,153.08
  6. Step 6: Final answer
    x = 446,338.29

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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.