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Finding the Fourth Proportional to 657,484.40, 986,226.60 and 551,196.20

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Solution

The fourth proportional to 657,484.40, 986,226.60 and 551,196.20 is: 826,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,484.40 : 986,226.60 = 551,196.20 : x
  2. Step 2: Convert to fraction form
    657,484.40/986,226.60 = 551,196.20/x
  3. Step 3: Cross multiply
    657,484.40x = 986,226.60 × 551,196.20
  4. Step 4: Simplify right side
    657,484.40x = 543,604,354,258.92
  5. Step 5: Solve for x
    x = 543,604,354,258.92/657,484.40
  6. Step 6: Final answer
    x = 826,794.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.