Home / 872,767.63-1,309,138.29-392,656.37

Finding the Fourth Proportional to 872,767.63, 1,309,138.29 and 392,656.37

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Solution

The fourth proportional to 872,767.63, 1,309,138.29 and 392,656.37 is: 588,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,767.63 : 1,309,138.29 = 392,656.37 : x
  2. Step 2: Convert to fraction form
    872,767.63/1,309,138.29 = 392,656.37/x
  3. Step 3: Cross multiply
    872,767.63x = 1,309,138.29 × 392,656.37
  4. Step 4: Simplify right side
    872,767.63x = 514,041,488,779.41
  5. Step 5: Solve for x
    x = 514,041,488,779.41/872,767.63
  6. Step 6: Final answer
    x = 588,978.64

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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.