Home / 842,309.55-1,263,088.89-243,128.25

Finding the Fourth Proportional to 842,309.55, 1,263,088.89 and 243,128.25

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Solution

The fourth proportional to 842,309.55, 1,263,088.89 and 243,128.25 is: 364,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,309.55 : 1,263,088.89 = 243,128.25 : x
  2. Step 2: Convert to fraction form
    842,309.55/1,263,088.89 = 243,128.25/x
  3. Step 3: Cross multiply
    842,309.55x = 1,263,088.89 × 243,128.25
  4. Step 4: Simplify right side
    842,309.55x = 307,092,591,420.14
  5. Step 5: Solve for x
    x = 307,092,591,420.14/842,309.55
  6. Step 6: Final answer
    x = 364,584.01

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1.5x scale

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.