Home / 781,090.56-1,077,880.32-441,538.56

Finding the Fourth Proportional to 781,090.56, 1,077,880.32 and 441,538.56

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Solution

The fourth proportional to 781,090.56, 1,077,880.32 and 441,538.56 is: 609,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,090.56 : 1,077,880.32 = 441,538.56 : x
  2. Step 2: Convert to fraction form
    781,090.56/1,077,880.32 = 441,538.56/x
  3. Step 3: Cross multiply
    781,090.56x = 1,077,880.32 × 441,538.56
  4. Step 4: Simplify right side
    781,090.56x = 475,925,724,345.14
  5. Step 5: Solve for x
    x = 475,925,724,345.14/781,090.56
  6. Step 6: Final answer
    x = 609,309.28

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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.