Home / 745,800.40-1,118,862.60-272,485

Finding the Fourth Proportional to 745,800.40, 1,118,862.60 and 272,485

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Solution

The fourth proportional to 745,800.40, 1,118,862.60 and 272,485 is: 408,786.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,800.40 : 1,118,862.60 = 272,485 : x
  2. Step 2: Convert to fraction form
    745,800.40/1,118,862.60 = 272,485/x
  3. Step 3: Cross multiply
    745,800.40x = 1,118,862.60 × 272,485
  4. Step 4: Simplify right side
    745,800.40x = 304,873,275,561
  5. Step 5: Solve for x
    x = 304,873,275,561/745,800.40
  6. Step 6: Final answer
    x = 408,786.69

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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.