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Finding the Fourth Proportional to 612,802.73, 845,691.83 and 370,948.47

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Solution

The fourth proportional to 612,802.73, 845,691.83 and 370,948.47 is: 511,923.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,802.73 : 845,691.83 = 370,948.47 : x
  2. Step 2: Convert to fraction form
    612,802.73/845,691.83 = 370,948.47/x
  3. Step 3: Cross multiply
    612,802.73x = 845,691.83 × 370,948.47
  4. Step 4: Simplify right side
    612,802.73x = 313,708,088,575.26
  5. Step 5: Solve for x
    x = 313,708,088,575.26/612,802.73
  6. Step 6: Final answer
    x = 511,923.46

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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.