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Finding the Fourth Proportional to 522,576.63, 783,866.16 and 143,502.57

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Solution

The fourth proportional to 522,576.63, 783,866.16 and 143,502.57 is: 215,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,576.63 : 783,866.16 = 143,502.57 : x
  2. Step 2: Convert to fraction form
    522,576.63/783,866.16 = 143,502.57/x
  3. Step 3: Cross multiply
    522,576.63x = 783,866.16 × 143,502.57
  4. Step 4: Simplify right side
    522,576.63x = 112,486,808,496.03
  5. Step 5: Solve for x
    x = 112,486,808,496.03/522,576.63
  6. Step 6: Final answer
    x = 215,254.19

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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.