Home / 826,449.39-1,140,412.55-463,913.12

Finding the Fourth Proportional to 826,449.39, 1,140,412.55 and 463,913.12

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Solution

The fourth proportional to 826,449.39, 1,140,412.55 and 463,913.12 is: 640,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,449.39 : 1,140,412.55 = 463,913.12 : x
  2. Step 2: Convert to fraction form
    826,449.39/1,140,412.55 = 463,913.12/x
  3. Step 3: Cross multiply
    826,449.39x = 1,140,412.55 × 463,913.12
  4. Step 4: Simplify right side
    826,449.39x = 529,052,344,689.12
  5. Step 5: Solve for x
    x = 529,052,344,689.12/826,449.39
  6. Step 6: Final answer
    x = 640,150.93

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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.