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Finding the Fourth Proportional to 565,288.20, 849,314.70 and 425,320.20

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Solution

The fourth proportional to 565,288.20, 849,314.70 and 425,320.20 is: 639,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,288.20 : 849,314.70 = 425,320.20 : x
  2. Step 2: Convert to fraction form
    565,288.20/849,314.70 = 425,320.20/x
  3. Step 3: Cross multiply
    565,288.20x = 849,314.70 × 425,320.20
  4. Step 4: Simplify right side
    565,288.20x = 361,230,698,066.94
  5. Step 5: Solve for x
    x = 361,230,698,066.94/565,288.20
  6. Step 6: Final answer
    x = 639,020.41

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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.