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Finding the Fourth Proportional to 563,538.76, 777,702.58 and 308,889.96

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Solution

The fourth proportional to 563,538.76, 777,702.58 and 308,889.96 is: 426,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,538.76 : 777,702.58 = 308,889.96 : x
  2. Step 2: Convert to fraction form
    563,538.76/777,702.58 = 308,889.96/x
  3. Step 3: Cross multiply
    563,538.76x = 777,702.58 × 308,889.96
  4. Step 4: Simplify right side
    563,538.76x = 240,224,518,828.10
  5. Step 5: Solve for x
    x = 240,224,518,828.10/563,538.76
  6. Step 6: Final answer
    x = 426,278.61

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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.