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Finding the Fourth Proportional to 485,863.86, 728,795.79 and 249,055.50

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Solution

The fourth proportional to 485,863.86, 728,795.79 and 249,055.50 is: 373,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,863.86 : 728,795.79 = 249,055.50 : x
  2. Step 2: Convert to fraction form
    485,863.86/728,795.79 = 249,055.50/x
  3. Step 3: Cross multiply
    485,863.86x = 728,795.79 × 249,055.50
  4. Step 4: Simplify right side
    485,863.86x = 181,510,599,876.35
  5. Step 5: Solve for x
    x = 181,510,599,876.35/485,863.86
  6. Step 6: Final answer
    x = 373,583.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.