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Finding the Fourth Proportional to 612,010.35, 844,557.44 and 340,071.21

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Solution

The fourth proportional to 612,010.35, 844,557.44 and 340,071.21 is: 469,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,010.35 : 844,557.44 = 340,071.21 : x
  2. Step 2: Convert to fraction form
    612,010.35/844,557.44 = 340,071.21/x
  3. Step 3: Cross multiply
    612,010.35x = 844,557.44 × 340,071.21
  4. Step 4: Simplify right side
    612,010.35x = 287,209,668,834.95
  5. Step 5: Solve for x
    x = 287,209,668,834.95/612,010.35
  6. Step 6: Final answer
    x = 469,288.91

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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.