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Finding the Fourth Proportional to 485,856.83, 728,786.48 and 249,070.34

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Solution

The fourth proportional to 485,856.83, 728,786.48 and 249,070.34 is: 373,606.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,856.83 : 728,786.48 = 249,070.34 : x
  2. Step 2: Convert to fraction form
    485,856.83/728,786.48 = 249,070.34/x
  3. Step 3: Cross multiply
    485,856.83x = 728,786.48 × 249,070.34
  4. Step 4: Simplify right side
    485,856.83x = 181,519,096,937.62
  5. Step 5: Solve for x
    x = 181,519,096,937.62/485,856.83
  6. Step 6: Final answer
    x = 373,606.14

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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.