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Finding the Fourth Proportional to 517,032.71, 775,376.83 and 217,457.45

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Solution

The fourth proportional to 517,032.71, 775,376.83 and 217,457.45 is: 326,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,032.71 : 775,376.83 = 217,457.45 : x
  2. Step 2: Convert to fraction form
    517,032.71/775,376.83 = 217,457.45/x
  3. Step 3: Cross multiply
    517,032.71x = 775,376.83 × 217,457.45
  4. Step 4: Simplify right side
    517,032.71x = 168,611,468,240.88
  5. Step 5: Solve for x
    x = 168,611,468,240.88/517,032.71
  6. Step 6: Final answer
    x = 326,113.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.