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Finding the Fourth Proportional to 563,950.25, 778,255.19 and 309,303.26

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Solution

The fourth proportional to 563,950.25, 778,255.19 and 309,303.26 is: 426,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,950.25 : 778,255.19 = 309,303.26 : x
  2. Step 2: Convert to fraction form
    563,950.25/778,255.19 = 309,303.26/x
  3. Step 3: Cross multiply
    563,950.25x = 778,255.19 × 309,303.26
  4. Step 4: Simplify right side
    563,950.25x = 240,716,861,941.13
  5. Step 5: Solve for x
    x = 240,716,861,941.13/563,950.25
  6. Step 6: Final answer
    x = 426,840.60

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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.