Home / 826,139.24-1,140,012.36-458,636.11

Finding the Fourth Proportional to 826,139.24, 1,140,012.36 and 458,636.11

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Solution

The fourth proportional to 826,139.24, 1,140,012.36 and 458,636.11 is: 632,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,139.24 : 1,140,012.36 = 458,636.11 : x
  2. Step 2: Convert to fraction form
    826,139.24/1,140,012.36 = 458,636.11/x
  3. Step 3: Cross multiply
    826,139.24x = 1,140,012.36 × 458,636.11
  4. Step 4: Simplify right side
    826,139.24x = 522,850,831,292.29
  5. Step 5: Solve for x
    x = 522,850,831,292.29/826,139.24
  6. Step 6: Final answer
    x = 632,884.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.