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Finding the Fourth Proportional to 563,416.08, 777,511.08 and 308,758.56

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Solution

The fourth proportional to 563,416.08, 777,511.08 and 308,758.56 is: 426,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,416.08 : 777,511.08 = 308,758.56 : x
  2. Step 2: Convert to fraction form
    563,416.08/777,511.08 = 308,758.56/x
  3. Step 3: Cross multiply
    563,416.08x = 777,511.08 × 308,758.56
  4. Step 4: Simplify right side
    563,416.08x = 240,063,201,444.85
  5. Step 5: Solve for x
    x = 240,063,201,444.85/563,416.08
  6. Step 6: Final answer
    x = 426,085.11

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1.5x scale

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.