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Finding the Fourth Proportional to 612,007.44, 844,559.05 and 340,070.38

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Solution

The fourth proportional to 612,007.44, 844,559.05 and 340,070.38 is: 469,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,007.44 : 844,559.05 = 340,070.38 : x
  2. Step 2: Convert to fraction form
    612,007.44/844,559.05 = 340,070.38/x
  3. Step 3: Cross multiply
    612,007.44x = 844,559.05 × 340,070.38
  4. Step 4: Simplify right side
    612,007.44x = 287,209,517,065.94
  5. Step 5: Solve for x
    x = 287,209,517,065.94/612,007.44
  6. Step 6: Final answer
    x = 469,290.89

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1.5x scale

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.