Home / 563,511.15-777,643.78-308,861.55

Finding the Fourth Proportional to 563,511.15, 777,643.78 and 308,861.55

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Solution

The fourth proportional to 563,511.15, 777,643.78 and 308,861.55 is: 426,228.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,511.15 : 777,643.78 = 308,861.55 : x
  2. Step 2: Convert to fraction form
    563,511.15/777,643.78 = 308,861.55/x
  3. Step 3: Cross multiply
    563,511.15x = 777,643.78 × 308,861.55
  4. Step 4: Simplify right side
    563,511.15x = 240,184,265,961.79
  5. Step 5: Solve for x
    x = 240,184,265,961.79/563,511.15
  6. Step 6: Final answer
    x = 426,228.06

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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.