Home / 872,806.20-1,309,858.26-648,688.44

Finding the Fourth Proportional to 872,806.20, 1,309,858.26 and 648,688.44

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Solution

The fourth proportional to 872,806.20, 1,309,858.26 and 648,688.44 is: 973,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,806.20 : 1,309,858.26 = 648,688.44 : x
  2. Step 2: Convert to fraction form
    872,806.20/1,309,858.26 = 648,688.44/x
  3. Step 3: Cross multiply
    872,806.20x = 1,309,858.26 × 648,688.44
  4. Step 4: Simplify right side
    872,806.20x = 849,689,911,300.51
  5. Step 5: Solve for x
    x = 849,689,911,300.51/872,806.20
  6. Step 6: Final answer
    x = 973,514.98

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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.