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Finding the Fourth Proportional to 630,032.40, 944,443.80 and 209,091.60

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Solution

The fourth proportional to 630,032.40, 944,443.80 and 209,091.60 is: 313,436.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,032.40 : 944,443.80 = 209,091.60 : x
  2. Step 2: Convert to fraction form
    630,032.40/944,443.80 = 209,091.60/x
  3. Step 3: Cross multiply
    630,032.40x = 944,443.80 × 209,091.60
  4. Step 4: Simplify right side
    630,032.40x = 197,475,265,252.08
  5. Step 5: Solve for x
    x = 197,475,265,252.08/630,032.40
  6. Step 6: Final answer
    x = 313,436.68

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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.