Home / 642,106.17-963,626.27-517,253.67

Finding the Fourth Proportional to 642,106.17, 963,626.27 and 517,253.67

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Solution

The fourth proportional to 642,106.17, 963,626.27 and 517,253.67 is: 776,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,106.17 : 963,626.27 = 517,253.67 : x
  2. Step 2: Convert to fraction form
    642,106.17/963,626.27 = 517,253.67/x
  3. Step 3: Cross multiply
    642,106.17x = 963,626.27 × 517,253.67
  4. Step 4: Simplify right side
    642,106.17x = 498,439,222,079.64
  5. Step 5: Solve for x
    x = 498,439,222,079.64/642,106.17
  6. Step 6: Final answer
    x = 776,256.71

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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.