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Finding the Fourth Proportional to 836,530.80, 1,154,419.80 and 454,557.60

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Solution

The fourth proportional to 836,530.80, 1,154,419.80 and 454,557.60 is: 627,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,530.80 : 1,154,419.80 = 454,557.60 : x
  2. Step 2: Convert to fraction form
    836,530.80/1,154,419.80 = 454,557.60/x
  3. Step 3: Cross multiply
    836,530.80x = 1,154,419.80 × 454,557.60
  4. Step 4: Simplify right side
    836,530.80x = 524,750,293,680.48
  5. Step 5: Solve for x
    x = 524,750,293,680.48/836,530.80
  6. Step 6: Final answer
    x = 627,293.45

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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.