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Finding the Fourth Proportional to 875,254.68, 1,207,872.81 and 488,066.32

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Solution

The fourth proportional to 875,254.68, 1,207,872.81 and 488,066.32 is: 673,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,254.68 : 1,207,872.81 = 488,066.32 : x
  2. Step 2: Convert to fraction form
    875,254.68/1,207,872.81 = 488,066.32/x
  3. Step 3: Cross multiply
    875,254.68x = 1,207,872.81 × 488,066.32
  4. Step 4: Simplify right side
    875,254.68x = 589,522,032,969.60
  5. Step 5: Solve for x
    x = 589,522,032,969.60/875,254.68
  6. Step 6: Final answer
    x = 673,543.43

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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.