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Finding the Fourth Proportional to 551,473.60, 827,210.40 and 314,840.20

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Solution

The fourth proportional to 551,473.60, 827,210.40 and 314,840.20 is: 472,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,473.60 : 827,210.40 = 314,840.20 : x
  2. Step 2: Convert to fraction form
    551,473.60/827,210.40 = 314,840.20/x
  3. Step 3: Cross multiply
    551,473.60x = 827,210.40 × 314,840.20
  4. Step 4: Simplify right side
    551,473.60x = 260,439,087,778.08
  5. Step 5: Solve for x
    x = 260,439,087,778.08/551,473.60
  6. Step 6: Final answer
    x = 472,260.30

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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.