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Finding the Fourth Proportional to 503,055.74, 693,987.93 and 298,990.71

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Solution

The fourth proportional to 503,055.74, 693,987.93 and 298,990.71 is: 412,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,055.74 : 693,987.93 = 298,990.71 : x
  2. Step 2: Convert to fraction form
    503,055.74/693,987.93 = 298,990.71/x
  3. Step 3: Cross multiply
    503,055.74x = 693,987.93 × 298,990.71
  4. Step 4: Simplify right side
    503,055.74x = 207,495,943,922.13
  5. Step 5: Solve for x
    x = 207,495,943,922.13/503,055.74
  6. Step 6: Final answer
    x = 412,471.08

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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.