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Finding the Fourth Proportional to 646,080.82, 891,576.36 and 359,594.75

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Solution

The fourth proportional to 646,080.82, 891,576.36 and 359,594.75 is: 496,232.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,080.82 : 891,576.36 = 359,594.75 : x
  2. Step 2: Convert to fraction form
    646,080.82/891,576.36 = 359,594.75/x
  3. Step 3: Cross multiply
    646,080.82x = 891,576.36 × 359,594.75
  4. Step 4: Simplify right side
    646,080.82x = 320,606,180,509.05
  5. Step 5: Solve for x
    x = 320,606,180,509.05/646,080.82
  6. Step 6: Final answer
    x = 496,232.32

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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.