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Finding the Fourth Proportional to 612,768, 845,619.84 and 344,497.92

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Solution

The fourth proportional to 612,768, 845,619.84 and 344,497.92 is: 475,407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,768 : 845,619.84 = 344,497.92 : x
  2. Step 2: Convert to fraction form
    612,768/845,619.84 = 344,497.92/x
  3. Step 3: Cross multiply
    612,768x = 845,619.84 × 344,497.92
  4. Step 4: Simplify right side
    612,768x = 291,314,275,990.73
  5. Step 5: Solve for x
    x = 291,314,275,990.73/612,768
  6. Step 6: Final answer
    x = 475,407.13

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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.