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Finding the Fourth Proportional to 612,034.60, 844,590.78 and 340,095.40

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Solution

The fourth proportional to 612,034.60, 844,590.78 and 340,095.40 is: 469,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,034.60 : 844,590.78 = 340,095.40 : x
  2. Step 2: Convert to fraction form
    612,034.60/844,590.78 = 340,095.40/x
  3. Step 3: Cross multiply
    612,034.60x = 844,590.78 × 340,095.40
  4. Step 4: Simplify right side
    612,034.60x = 287,241,439,160.41
  5. Step 5: Solve for x
    x = 287,241,439,160.41/612,034.60
  6. Step 6: Final answer
    x = 469,322.22

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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.