Home / 745,802.40-1,118,865.60-272,487

Finding the Fourth Proportional to 745,802.40, 1,118,865.60 and 272,487

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Solution

The fourth proportional to 745,802.40, 1,118,865.60 and 272,487 is: 408,789.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,802.40 : 1,118,865.60 = 272,487 : x
  2. Step 2: Convert to fraction form
    745,802.40/1,118,865.60 = 272,487/x
  3. Step 3: Cross multiply
    745,802.40x = 1,118,865.60 × 272,487
  4. Step 4: Simplify right side
    745,802.40x = 304,876,330,747.20
  5. Step 5: Solve for x
    x = 304,876,330,747.20/745,802.40
  6. Step 6: Final answer
    x = 408,789.69

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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.