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Finding the Fourth Proportional to 832,872.80, 1,149,364.80 and 450,899.60

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Solution

The fourth proportional to 832,872.80, 1,149,364.80 and 450,899.60 is: 622,241.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,872.80 : 1,149,364.80 = 450,899.60 : x
  2. Step 2: Convert to fraction form
    832,872.80/1,149,364.80 = 450,899.60/x
  3. Step 3: Cross multiply
    832,872.80x = 1,149,364.80 × 450,899.60
  4. Step 4: Simplify right side
    832,872.80x = 518,248,128,574.08
  5. Step 5: Solve for x
    x = 518,248,128,574.08/832,872.80
  6. Step 6: Final answer
    x = 622,241.63

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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.