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Finding the Fourth Proportional to 563,555, 777,706.08 and 308,907.92

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Solution

The fourth proportional to 563,555, 777,706.08 and 308,907.92 is: 426,293.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,555 : 777,706.08 = 308,907.92 : x
  2. Step 2: Convert to fraction form
    563,555/777,706.08 = 308,907.92/x
  3. Step 3: Cross multiply
    563,555x = 777,706.08 × 308,907.92
  4. Step 4: Simplify right side
    563,555x = 240,239,567,544.15
  5. Step 5: Solve for x
    x = 240,239,567,544.15/563,555
  6. Step 6: Final answer
    x = 426,293.03

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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.