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Finding the Fourth Proportional to 563,479.74, 777,566.79 and 308,812.86

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Solution

The fourth proportional to 563,479.74, 777,566.79 and 308,812.86 is: 426,142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,479.74 : 777,566.79 = 308,812.86 : x
  2. Step 2: Convert to fraction form
    563,479.74/777,566.79 = 308,812.86/x
  3. Step 3: Cross multiply
    563,479.74x = 777,566.79 × 308,812.86
  4. Step 4: Simplify right side
    563,479.74x = 240,122,624,260.92
  5. Step 5: Solve for x
    x = 240,122,624,260.92/563,479.74
  6. Step 6: Final answer
    x = 426,142.43

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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.