Home / 1,920,148.35-2,880,212.13-782,906.15

Finding the Fourth Proportional to 1,920,148.35, 2,880,212.13 and 782,906.15

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Solution

The fourth proportional to 1,920,148.35, 2,880,212.13 and 782,906.15 is: 1,174,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,148.35 : 2,880,212.13 = 782,906.15 : x
  2. Step 2: Convert to fraction form
    1,920,148.35/2,880,212.13 = 782,906.15/x
  3. Step 3: Cross multiply
    1,920,148.35x = 2,880,212.13 × 782,906.15
  4. Step 4: Simplify right side
    1,920,148.35x = 2,254,935,775,480.54
  5. Step 5: Solve for x
    x = 2,254,935,775,480.54/1,920,148.35
  6. Step 6: Final answer
    x = 1,174,354.98

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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.