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Finding the Fourth Proportional to 630,550.40, 944,270.40 and 419,043.20

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Solution

The fourth proportional to 630,550.40, 944,270.40 and 419,043.20 is: 627,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,550.40 : 944,270.40 = 419,043.20 : x
  2. Step 2: Convert to fraction form
    630,550.40/944,270.40 = 419,043.20/x
  3. Step 3: Cross multiply
    630,550.40x = 944,270.40 × 419,043.20
  4. Step 4: Simplify right side
    630,550.40x = 395,690,090,081.28
  5. Step 5: Solve for x
    x = 395,690,090,081.28/630,550.40
  6. Step 6: Final answer
    x = 627,531.26

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1.5x scale

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.