Home / 1,556,938.20-2,146,665.96-1,280,329.68

Finding the Fourth Proportional to 1,556,938.20, 2,146,665.96 and 1,280,329.68

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Solution

The fourth proportional to 1,556,938.20, 2,146,665.96 and 1,280,329.68 is: 1,765,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,938.20 : 2,146,665.96 = 1,280,329.68 : x
  2. Step 2: Convert to fraction form
    1,556,938.20/2,146,665.96 = 1,280,329.68/x
  3. Step 3: Cross multiply
    1,556,938.20x = 2,146,665.96 × 1,280,329.68
  4. Step 4: Simplify right side
    1,556,938.20x = 2,748,440,141,633.69
  5. Step 5: Solve for x
    x = 2,748,440,141,633.69/1,556,938.20
  6. Step 6: Final answer
    x = 1,765,285.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.