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Finding the Fourth Proportional to 612,802.23, 845,691.15 and 370,947.97

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Solution

The fourth proportional to 612,802.23, 845,691.15 and 370,947.97 is: 511,922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,802.23 : 845,691.15 = 370,947.97 : x
  2. Step 2: Convert to fraction form
    612,802.23/845,691.15 = 370,947.97/x
  3. Step 3: Cross multiply
    612,802.23x = 845,691.15 × 370,947.97
  4. Step 4: Simplify right side
    612,802.23x = 313,707,415,339.47
  5. Step 5: Solve for x
    x = 313,707,415,339.47/612,802.23
  6. Step 6: Final answer
    x = 511,922.77

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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.