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Finding the Fourth Proportional to 565,298.20, 849,329.70 and 425,330.20

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Solution

The fourth proportional to 565,298.20, 849,329.70 and 425,330.20 is: 639,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,298.20 : 849,329.70 = 425,330.20 : x
  2. Step 2: Convert to fraction form
    565,298.20/849,329.70 = 425,330.20/x
  3. Step 3: Cross multiply
    565,298.20x = 849,329.70 × 425,330.20
  4. Step 4: Simplify right side
    565,298.20x = 361,245,571,166.94
  5. Step 5: Solve for x
    x = 361,245,571,166.94/565,298.20
  6. Step 6: Final answer
    x = 639,035.42

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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.