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Finding the Fourth Proportional to 612,594, 845,378.64 and 340,654.32

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Solution

The fourth proportional to 612,594, 845,378.64 and 340,654.32 is: 470,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,594 : 845,378.64 = 340,654.32 : x
  2. Step 2: Convert to fraction form
    612,594/845,378.64 = 340,654.32/x
  3. Step 3: Cross multiply
    612,594x = 845,378.64 × 340,654.32
  4. Step 4: Simplify right side
    612,594x = 287,981,885,751.73
  5. Step 5: Solve for x
    x = 287,981,885,751.73/612,594
  6. Step 6: Final answer
    x = 470,102.36

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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.